APA

Chapman R. N., . (1931). Animal ecology, with especial reference to insects. New York: McGraw-Hill.

Chicago

Chapman Royal Norton, . 1931. Animal ecology, with especial reference to insects. New York: McGraw-Hill.

Harvard

Chapman R. N., . (1931). Animal ecology, with especial reference to insects. New York: McGraw-Hill.

MLA

Chapman Royal Norton, . Animal ecology, with especial reference to insects. New York: McGraw-Hill. 1931.