Babcock, E. B. 1., & Clausen, R. E. 1. (1927). Genetics in relation to agriculture (2nd ed.). McGraw-Hill.
Čikaški stil citiranja (17. izdanje)Babcock, Ernest Brown 1877, i Roy Elwood 1891 Clausen. Genetics in Relation to Agriculture. 2nd ed. New York: McGraw-Hill, 1927.
MLA način citiranja (9. izdanje)Babcock, Ernest Brown 1877, i Roy Elwood 1891 Clausen. Genetics in Relation to Agriculture. 2nd ed. McGraw-Hill, 1927.
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