Cita APA (7th ed.)

Perpillou, A. V. (1966). Human geography. Longmans.

Cita Chicago (17th ed.)

Perpillou, Aimé Vincent. Human Geography. Gran Bretaña: Longmans, 1966.

Cita MLA (9th ed.)

Perpillou, Aimé Vincent. Human Geography. Longmans, 1966.