APA استشهاد

Morgan, W., & Willams, D. D. F. (1980). Structural Mechanics. Pitman Education.

استشهاد بنمط شيكاغو

Morgan, W., و D.T Durka Frank Willams. Structural Mechanics. London: Pitman Education, 1980.

MLA استشهاد

Morgan, W., و D.T Durka Frank Willams. Structural Mechanics. Pitman Education, 1980.