Humphries, D., Wright, D., Royle, J., & Marshall, T. (2001). Proportions of activities in a climbing gym. BMJ Group.
استشهاد بنمط شيكاغوHumphries, D., D. Wright, J. Royle, و T. Marshall. Proportions of Activities in a Climbing Gym. BMJ Group, 2001.
MLA استشهادHumphries, D., D. Wright, J. Royle, و T. Marshall. Proportions of Activities in a Climbing Gym. BMJ Group, 2001.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.