Plantae mexicanae purpusianae, [I-]
MLA
Brandegee, Townshend Stith. Plantae Mexicanae Purpusianae, [i-]. [Berkeley, 1909-
APA, 7th edition
Brandegee, T. Stith. (1909-). Plantae mexicanae purpusianae, [I-]. [Berkeley
Chicago, 17th edition
Brandegee, Townshend Stith. Plantae mexicanae purpusianae, [I-]. [Berkeley, 1909-