APA

Waldron I., Ricklefs R. E., . (1973). Environment and population: problems and solutions. New York: Holt, Rinehart and Winston.

Chicago

Waldron Ingrid, Ricklefs Robert E, . 1973. Environment and population: problems and solutions. New York: Holt, Rinehart and Winston.

Harvard

Waldron I., Ricklefs R. E., . (1973). Environment and population: problems and solutions. New York: Holt, Rinehart and Winston.

MLA

Waldron Ingrid, Ricklefs Robert E, . Environment and population: problems and solutions. New York: Holt, Rinehart and Winston. 1973.