APA-referens

Dittmer, H. J. (1964). Phylogeny and form in the plant kingdom. East west.

Chicago-stil citat

Dittmer, Howard J. Phylogeny and Form in the Plant Kingdom. New delhi: East west, 1964.

MLA-referens

Dittmer, Howard J. Phylogeny and Form in the Plant Kingdom. East west, 1964.