Παραπομπή APA

Schenk, E. T. M. (1948). Procedure in taxonomy.

Παραπομπή Chicago Style

Schenk, Edward T; Mcmasters. Procedure in Taxonomy. Stanford University Press, California, 1948.

Παραπομπή MLA

Schenk, Edward T; Mcmasters. Procedure in Taxonomy. 1948.