Dyfyniad APA
U.S. Department of Health, Education, and Welfare. (1968). Health Aspects of pesticides: Abstract bulletin. U.S.Gov.Print.Off.
Dyfyniad Arddull Chicago
U.S. Department of Health, Education, and Welfare. Health Aspects of Pesticides: Abstract Bulletin. Washington: U.S.Gov.Print.Off, 1968.
Dyfyniad MLA
U.S. Department of Health, Education, and Welfare. Health Aspects of Pesticides: Abstract Bulletin. U.S.Gov.Print.Off, 1968.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.