APA (7th ed.) Zitazioa

ebrary, Inc, & De Groot, J. (2004). Nature in American philosophy. Catholic University of America Press.

Chicago Style (17th ed.) Zitazioa

ebrary, Inc, eta Jean De Groot. Nature in American Philosophy. Washington, D.C.: Catholic University of America Press, 2004.

MLA (9th ed.) Zitazioa

ebrary, Inc, eta Jean De Groot. Nature in American Philosophy. Catholic University of America Press, 2004.