Cita APA (7a ed.)

Wallén, C. C. (1970). Climates of northern and western Europe. Elsevier.

Cita Chicago Style (17a ed.)

Wallén, C. C. Climates of Northern and Western Europe. Amsterdam [etc.]: Elsevier, 1970.

Cita MLA (9a ed.)

Wallén, C. C. Climates of Northern and Western Europe. Elsevier, 1970.