Kirk, S. (1991). Hormones: By Sheila Kirk (2. Auflage, 1992 edition.). International Foundation for Gender Education.
Čikaški stil citiranja (17. izdanje)Kirk, Sheila. Hormones: By Sheila Kirk. 2. Auflage, 1992 edition. Wayland, Mass.: International Foundation for Gender Education, 1991.
MLA način citiranja (8. izdanje)Kirk, Sheila. Hormones: By Sheila Kirk. 2. Auflage, 1992 edition. International Foundation for Gender Education, 1991.
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