APA استشهاد

Barton, N., & Stephansson, O. (1990). Rock joints: Proceedings of the International Symposium on Rock Joints, Loen, Norway, 4-6 June 1990. Rotterdam: Balkema.

استشهاد بنمط شيكاغو

Barton, Nick., and Ove Stephansson. Rock Joints: Proceedings of the International Symposium On Rock Joints, Loen, Norway, 4-6 June 1990. Rotterdam: Balkema, 1990.

MLA استشهاد

Barton, Nick., and Ove Stephansson. Rock Joints: Proceedings of the International Symposium On Rock Joints, Loen, Norway, 4-6 June 1990. Rotterdam: Balkema, 1990.

تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.