Cita APA (7th ed.)

John, B. (1979). The Winters of the World: Earth Under the Ice Ages. David & Charles.

Cita Chicago (17th ed.)

John, Brian. The Winters of the World: Earth Under the Ice Ages. Newton Abbot: David & Charles, 1979.

Cita MLA (9th ed.)

John, Brian. The Winters of the World: Earth Under the Ice Ages. David & Charles, 1979.