Dyfyniad APA

New York Association for Improving the Condition of the Poor. Bureau of Public Health and Hygiene & Armstrong, D. B. (1913). Flies and diarrheal disease.

Dyfyniad Arddull Chicago

New York Association for Improving the Condition of the Poor. Bureau of Public Health and Hygiene and Donald B. Armstrong. Flies and Diarrheal Disease. New York : New York Association for Improving the Condition of the Poor, 1913.

Dyfyniad MLA

New York Association for Improving the Condition of the Poor. Bureau of Public Health and Hygiene and Donald B. Armstrong. Flies and Diarrheal Disease. 1913.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.