المؤلفون: United States. Bureau of Public Roads

المساهمون: U.S. Department of Agriculture, National Agricultural Library

مصطلحات موضوعية: Dirt roads, Dust control, Internet resource, Oiled roads, Tarred roads

الوصول الحر: http://www.biodiversitylibrary.org/bibliography/108275Test

المؤلفون: United States. Bureau of Public Roads

المساهمون: U.S. Department of Agriculture, National Agricultural Library

مصطلحات موضوعية: Dust control, Maintenance and repair, Roads

الوصول الحر: http://www.biodiversitylibrary.org/bibliography/108270Test

المؤلفون: Brown, Hylton R. (Hylton Roller), 1895-1979, Reed, J. O. (Jesse Oliver), 1896

المساهمون: U.S. Department of Agriculture, National Agricultural Library

مصطلحات موضوعية: Dust explosions, Grain elevators

الوصول الحر: http://www.biodiversitylibrary.org/bibliography/108139Test

المؤلفون: Brown, Hylton R. (Hylton Roller), 1895-1979, Reed, J. O. (Jesse Oliver), 1896

المساهمون: U.S. Department of Agriculture, National Agricultural Library

مصطلحات موضوعية: Dust control, Grain elevators

الوصول الحر: http://www.biodiversitylibrary.org/bibliography/108138Test

المؤلفون: United States. Bureau of Public Roads

المساهمون: U.S. Department of Agriculture, National Agricultural Library

مصطلحات موضوعية: Dirt roads, Dust control, Oiled roads, Tarred roads

الوصول الحر: http://www.biodiversitylibrary.org/bibliography/108024Test

المؤلفون: Smart, Andrew, Royal College of Physicians of Edinburgh

المساهمون: Royal College of Physicians in Edinburgh (archive.org)

مصطلحات موضوعية: Bacteria, Dust, Electronic books, Occupational diseases

الوصول الحر: http://www.biodiversitylibrary.org/bibliography/104992Test

المؤلفون: Prudden, T. Mitchell (Theophil Mitchell), 1849-1924

المساهمون: University of California Libraries (archive.org)

مصطلحات موضوعية: Bacteriology, Dust

الوصول الحر: http://www.biodiversitylibrary.org/bibliography/32442Test

المؤلفون: Prudden, T. Mitchell (Theophil Mitchell), 1849-1924

المساهمون: University of California Libraries (archive.org)

مصطلحات موضوعية: Bacteriology, Dust

الوصول الحر: http://www.biodiversitylibrary.org/bibliography/31590Test

المؤلفون: Prudden, T. Mitchell (Theophil Mitchell), 1849-1924

المساهمون: University of California Libraries (archive.org)

مصطلحات موضوعية: Bacteriology, Dust

الوصول الحر: http://www.biodiversitylibrary.org/bibliography/24702Test

المؤلفون: Tyndall, John, 1820-1893

المساهمون: Gerstein - University of Toronto (archive.org)

مصطلحات موضوعية: Air, Dust, Germ theory of disease, Microbiology, Spontaneous generation

الوصول الحر: http://www.biodiversitylibrary.org/bibliography/17945Test