APA (7e ed.) Bronvermelding

Van Leeuwen, J., & Schweninger, A. (2006). Oliver Pig and the best fort ever. Dial Books for Young Readers.

Chicago (17e ed.) Bronvermelding

Van Leeuwen, Jean, en Ann Schweninger. Oliver Pig and the Best Fort Ever. New York: Dial Books for Young Readers, 2006.

MLA (8e ed.) Bronvermelding

Van Leeuwen, Jean, en Ann Schweninger. Oliver Pig and the Best Fort Ever. Dial Books for Young Readers, 2006.