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1كتاب
المؤلفون: Keen, F. P. (Frederick Paul), 1890
المساهمون: U.S. Department of Agriculture, National Agricultural Library
مصطلحات موضوعية: Forest insects, West (U.S.)
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2كتاب
المؤلفون: Keen, F. P. (Frederick Paul), 1890
المساهمون: U.S. Department of Agriculture, National Agricultural Library
مصطلحات موضوعية: Diseases and pests, Forest insects, Trees, West (U.S.)
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3كتاب
المؤلفون: Keen, F. P. (Frederick Paul), 1890
المساهمون: U.S. Department of Agriculture, National Agricultural Library
مصطلحات موضوعية: Diseases and pests, Forest insects, Trees, West (U.S.)
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4كتاب
المؤلفون: Keen, F. P. (Frederick Paul), 1890
المساهمون: U.S. Department of Agriculture, National Agricultural Library
مصطلحات موضوعية: Forest insects, West (U.S.)
الوصول الحر: https://www.biodiversitylibrary.org/item/132358Test
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5كتاب
المؤلفون: Keen, F. P. (Frederick Paul), 1890
المساهمون: U.S. Department of Agriculture, National Agricultural Library
مصطلحات موضوعية: Diseases and pests, Forest insects, Trees, West (U.S.)
الوصول الحر: https://www.biodiversitylibrary.org/item/132337Test
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6كتاب
المؤلفون: Keen, F. P. (Frederick Paul), 1890
المساهمون: U.S. Department of Agriculture, National Agricultural Library
مصطلحات موضوعية: Diseases and pests, Forest insects, Trees, West (U.S.)
الوصول الحر: https://www.biodiversitylibrary.org/item/132338Test
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7كتاب
المؤلفون: Keen, F. P. (Frederick Paul), 1890-
المساهمون: U.S. Department of Agriculture, National Agricultural Library
مصطلحات موضوعية: Forest insects, West (U.S.)
الإتاحة: https://doi.org/10.5962/bhl.title.65595Test
https://www.biodiversitylibrary.org/bibliography/65595Test -
8كتاب
المؤلفون: Keen, F. P. (Frederick Paul), 1890-
المساهمون: U.S. Department of Agriculture, National Agricultural Library
مصطلحات موضوعية: Diseases and pests, Forest insects, Trees, West (U.S.)
الإتاحة: https://doi.org/10.5962/bhl.title.65574Test
https://www.biodiversitylibrary.org/bibliography/65574Test -
9كتاب
المؤلفون: Keen, F. P. (Frederick Paul), 1890-
المساهمون: U.S. Department of Agriculture, National Agricultural Library
مصطلحات موضوعية: Diseases and pests, Forest insects, Trees, West (U.S.)
الإتاحة: https://doi.org/10.5962/bhl.title.65575Test
https://www.biodiversitylibrary.org/bibliography/65575Test -
10كتاب
المؤلفون: Keen, F. P. (Frederick Paul), 1890-
المساهمون: U.S. Department of Agriculture, National Agricultural Library
مصطلحات موضوعية: Forest insects, West (U.S.)
العلاقة: https://www.biodiversitylibrary.org/bibliography/65595Test; https://www.biodiversitylibrary.org/item/132358Test
الإتاحة: https://doi.org/10.5962/bhl.title.65595Test
https://www.biodiversitylibrary.org/item/132358Test
