Παραπομπή APA

Stebbins, G. L. (1964). Variation and evolution in plants. Oxford & IBH.

Παραπομπή Chicago Style

Stebbins, G. Ledyard. Variation and Evolution in Plants. Calcutta: Oxford & IBH, 1964.

Παραπομπή MLA

Stebbins, G. Ledyard. Variation and Evolution in Plants. Oxford & IBH, 1964.