Cita APA (7th ed.)

Birot, P., & Ledesert, M. (1966). General physical geography. George Harrap.

Cita Chicago (17th ed.)

Birot, Pierre, i Margaret Ledesert. General Physical Geography. London: George Harrap, 1966.

Cita MLA (9th ed.)

Birot, Pierre, i Margaret Ledesert. General Physical Geography. George Harrap, 1966.