APA

Raven P. H., Evert R. F. & Eichhorn S. E. (1992). Biology of plants. New York, N.Y: Worth Publishers.

Chicago

Raven Peter H, Evert Ray Franklin and Eichhorn Susan E. 1992. Biology of plants. New York, N.Y: Worth Publishers.

Harvard

Raven P. H., Evert R. F. and Eichhorn S. E. (1992). Biology of plants. New York, N.Y: Worth Publishers.

MLA

Raven Peter H, Evert Ray Franklin and Eichhorn Susan E. Biology of plants. New York, N.Y: Worth Publishers. 1992.