APA
Singleton W., . (1962). Elementary genetics. Toronto: D. Van Nostrand Company.
Chicago
Singleton W.Ralph, . 1962. Elementary genetics. Toronto: D. Van Nostrand Company.
Harvard
Singleton W., . (1962). Elementary genetics. Toronto: D. Van Nostrand Company.
MLA
Singleton W.Ralph, . Elementary genetics. Toronto: D. Van Nostrand Company. 1962.