Cita APA

Allin, C. W. (1990). International handbook of national parks and nature reserves. New York, New York: Greenwood.

Citación estilo Chicago

Allin, Craig Willard. International Handbook of National Parks and Nature Reserves. New York, New York: Greenwood, 1990.

Cita MLA

Allin, Craig Willard. International Handbook of National Parks and Nature Reserves. New York, New York: Greenwood, 1990.