APA

Stewart W. N., Rothwell G. W., . (1993). Paleobotany and the evolution of plants. New York: Cambridge University Press.

Chicago

Stewart Wilson N, Rothwell Gar W, . 1993. Paleobotany and the evolution of plants. New York: Cambridge University Press.

Harvard

Stewart W. N., Rothwell G. W., . (1993). Paleobotany and the evolution of plants. New York: Cambridge University Press.

MLA

Stewart Wilson N, Rothwell Gar W, . Paleobotany and the evolution of plants. New York: Cambridge University Press. 1993.