Cita APA (7a ed.)

Scagel, R. F. (1969). Plant diversity: An evolutionary approach. Wadsworth.

Cita Chicago Style (17a ed.)

Scagel, Robert Francis. Plant Diversity: An Evolutionary Approach. Belmont, Calif.: Wadsworth, 1969.

Cita MLA (9a ed.)

Scagel, Robert Francis. Plant Diversity: An Evolutionary Approach. Wadsworth, 1969.