Cita APA (7th ed.)

Miller, V. C., & Westerback, M. E. (1989). Interpretation of topographic maps. Merrill.

Cita Chicago (17th ed.)

Miller, Victor C., i Mary E. Westerback. Interpretation of Topographic Maps. Columbus Ohio: Merrill, 1989.

Cita MLA (9th ed.)

Miller, Victor C., i Mary E. Westerback. Interpretation of Topographic Maps. Merrill, 1989.