APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.