APA

Raven P. H., Evert R. F. & Eichorn S. e. (1992). Biology of plants. New Work: Worth Publishers.

Chicago

Raven Peter H, Evert Ray Franklin and Eichorn Susan e. 1992. Biology of plants. New Work: Worth Publishers.

Harvard

Raven P. H., Evert R. F. and Eichorn S. e. (1992). Biology of plants. New Work: Worth Publishers.

MLA

Raven Peter H, Evert Ray Franklin and Eichorn Susan e. Biology of plants. New Work: Worth Publishers. 1992.