APA

Malthus T. R., Osborne F. H. & Huxley J. S. (1958). On population: three essays. New York: New American Library.

Chicago

Malthus Thomas Robert, Osborne Frederick Henry and Huxley Julian Sorell. 1958. On population: three essays. New York: New American Library.

Harvard

Malthus T. R., Osborne F. H. and Huxley J. S. (1958). On population: three essays. New York: New American Library.

MLA

Malthus Thomas Robert, Osborne Frederick Henry and Huxley Julian Sorell. On population: three essays. New York: New American Library. 1958.