Rock climbing.

MLA

Kidd, Timothy W., and Jennifer Hazelrigs. Rock Climbing. Champaign: Human Kinetics, 2009.

APA

Kidd, T. W., & Hazelrigs, J. (2009). Rock climbing. Champaign: Human Kinetics.

Chicago

Kidd, Timothy W., and Jennifer Hazelrigs. Rock Climbing. Champaign: Human Kinetics, 2009.