Cita APA (7th ed.)

Müller-Schwarze, D. (2011). The beaver: Its life and impact (2nd ed.). Comstock Pub. Associates.

Cita Chicago (17th ed.)

Müller-Schwarze, Dietland. The Beaver: Its Life and Impact. 2nd ed. Ithaca: Comstock Pub. Associates, 2011.

Cita MLA (9th ed.)

Müller-Schwarze, Dietland. The Beaver: Its Life and Impact. 2nd ed. Comstock Pub. Associates, 2011.