APA

Willner G. R., Chapman J. A. & Pursley D. (1979). Reproduction, physiological responses, food habits, and abundance of nutria on Maryland marshes. Bethesda, Maryland: The Wildlife Society.

Chicago

Willner Gale R, Chapman Joseph A and Pursley Duane. 1979. Reproduction, physiological responses, food habits, and abundance of nutria on Maryland marshes. Bethesda, Maryland: The Wildlife Society.

Harvard

Willner G. R., Chapman J. A. and Pursley D. (1979). Reproduction, physiological responses, food habits, and abundance of nutria on Maryland marshes. Bethesda, Maryland: The Wildlife Society.

MLA

Willner Gale R, Chapman Joseph A and Pursley Duane. Reproduction, physiological responses, food habits, and abundance of nutria on Maryland marshes. Bethesda, Maryland: The Wildlife Society. 1979.