Παραπομπή APA

Norris, C. h., & Wilbur, J. B. (1960). Elementary structural analysis (2.). Mc Graw-Hill Book Co.

Παραπομπή Chicago Style

Norris, Charles head, και John Benson Wilbur. Elementary Structural Analysis. 2. Newyork: Mc Graw-Hill Book Co, 1960.

Παραπομπή MLA

Norris, Charles head, και John Benson Wilbur. Elementary Structural Analysis. 2. Mc Graw-Hill Book Co, 1960.