Kirk, S. (1991). Hormones: By Sheila Kirk (2. Auflage, 1992 edition.). International Foundation for Gender Education.
Citazione stile Chigago Style (17a edizione)Kirk, Sheila. Hormones: By Sheila Kirk. 2. Auflage, 1992 edition. Wayland, Mass.: International Foundation for Gender Education, 1991.
Citatione MLA (8a ed.)Kirk, Sheila. Hormones: By Sheila Kirk. 2. Auflage, 1992 edition. International Foundation for Gender Education, 1991.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.