APA (7e ed.) Bronvermelding

Simpson, J., & Collins, A. (2008). Touching the void (abridged version). Macmillan.

Chicago (17e ed.) Bronvermelding

Simpson, Joe, en Anne Collins. Touching the Void (abridged Version). Oxford: Macmillan, 2008.

MLA (9e ed.) Bronvermelding

Simpson, Joe, en Anne Collins. Touching the Void (abridged Version). Macmillan, 2008.