APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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