APA (7th ed.) Citation

Ax, P. Multicellular animals: A new approach to the phylogenetic order in nature. Springer.

Chicago Style (17th ed.) Citation

Ax, Peter. Multicellular Animals: A New Approach to the Phylogenetic Order in Nature. Berlin u.a: Springer.

MLA (9th ed.) Citation

Ax, Peter. Multicellular Animals: A New Approach to the Phylogenetic Order in Nature. Springer.

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