APA (7th ed.) Citation

Hennig, W. (1966). Phylogenetic systematics. University of Illinois Press.

Chicago Style (17th ed.) Citation

Hennig, Willi. Phylogenetic Systematics. Urbana: University of Illinois Press, 1966.

MLA (9th ed.) Citation

Hennig, Willi. Phylogenetic Systematics. University of Illinois Press, 1966.

Warning: These citations may not always be 100% accurate.