Cita APA

Nunley, R. E. 1. (1960). The Distribution of population in Costa Rica. Washington: National Academy of Sciences, National Research Council.

Citación estilo Chicago

Nunley, Robert Edward 1931-. The Distribution of Population in Costa Rica. Washington: National Academy of Sciences, National Research Council, 1960.

Cita MLA

Nunley, Robert Edward 1931-. The Distribution of Population in Costa Rica. Washington: National Academy of Sciences, National Research Council, 1960.