Cita APA (7a ed.)

(1979). The Canadian landscape key: Map and air photo interpretation (2. ed.). Copp Clark Pitman.

Cita Chicago Style (17a ed.)

The Canadian Landscape Key: Map and Air Photo Interpretation. 2. ed. Toronto: Copp Clark Pitman, 1979.

Cita MLA (9a ed.)

The Canadian Landscape Key: Map and Air Photo Interpretation. 2. ed. Copp Clark Pitman, 1979.