APA (7th ed.) Citation

ebrary, Inc, & Petrus, K. (2003). On human persons. Ontos Verlag.

Chicago Style (17th ed.) Citation

ebrary, Inc, and Klaus Petrus. On Human Persons. Frankfurt: Ontos Verlag, 2003.

MLA (9th ed.) Citation

ebrary, Inc, and Klaus Petrus. On Human Persons. Ontos Verlag, 2003.

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