APA (7. basım) Alıntı

Nunley, R. E. (1960). The distribution of population in Costa Rica. National Academy of Sciences, National Research Council.

Chicago Style (17. basım) Atıf

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

MLA (9th ed.) Atıf

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