APA (7e ed.) Bronvermelding

Christensen, C., & Brill, M. (2011). The power within: By Charles "Zan" Christensen & Mark Brill. Northwest.

Chicago (17e ed.) Bronvermelding

Christensen, Charles, en Mark Brill. The Power Within: By Charles "Zan" Christensen & Mark Brill. Seattle, Wash.: Northwest, 2011.

MLA (8e ed.) Bronvermelding

Christensen, Charles, en Mark Brill. The Power Within: By Charles "Zan" Christensen & Mark Brill. Northwest, 2011.