Cita APA (7a ed.)

Lewis, G. (1982). Human migration: A geographical perspective. Croom Helm.

Cita Chicago Style (17a ed.)

Lewis, G.J. Human Migration: A Geographical Perspective. London ; Camberra: Croom Helm, 1982.

Cita MLA (9a ed.)

Lewis, G.J. Human Migration: A Geographical Perspective. Croom Helm, 1982.