Cita APA (7a ed.)

Kowalski, K. (1980). Origin of mammals of the arctic tundra. [s.n.].

Cita Chicago Style (17a ed.)

Kowalski, Kazimierz. Origin of Mammals of the Arctic Tundra. Krakow: [s.n.], 1980.

Cita MLA (9a ed.)

Kowalski, Kazimierz. Origin of Mammals of the Arctic Tundra. [s.n.], 1980.