Cita APA (7a ed.)

Kagan, A. (1987). Trova (2nd ed.). Trova Foundation.

Cita Chicago Style (17a ed.)

Kagan, Andrew. Trova. 2nd ed. St. Louis, Mo: Trova Foundation, 1987.

Cita MLA (9a ed.)

Kagan, Andrew. Trova. 2nd ed. Trova Foundation, 1987.