Farley, J. (1982). Gametes & spores: Ideas about sexual reproduction 1750 - 1914 / John Farley. Johns Hopkins University.
Cita Chicago (17th ed.)Farley, John. Gametes & Spores: Ideas About Sexual Reproduction 1750 - 1914 / John Farley. Baltimore, Md. [u.a.]: Johns Hopkins University, 1982.
Cita MLA (8th ed.)Farley, John. Gametes & Spores: Ideas About Sexual Reproduction 1750 - 1914 / John Farley. Johns Hopkins University, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.