Cita APA (7a ed.)

Bahn, P. G., & Vertut, J. (1988). Images of the Ice Age. Windward.

Cita Chicago Style (17a ed.)

Bahn, Paul G., y Jean Vertut. Images of the Ice Age. Leicester: Windward, 1988.

Cita MLA (9a ed.)

Bahn, Paul G., y Jean Vertut. Images of the Ice Age. Windward, 1988.