Citazione APA

Bold, H. C. (1967). Morphology of plants (2nd. ed.). Harper & Row.

Stile di citazione Chicago

Bold, Harold C. Morphology of Plants. 2nd. ed. New York: Harper & Row, 1967.

Citazione MLA

Bold, Harold C. Morphology of Plants. 2nd. ed. Harper & Row, 1967.