APA (7th ed.) Citation

Spofford, C. M. (1915). The theory of structures (2nd ed. rev. and enl.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Spofford, Charles Milton. The Theory of Structures. 2nd ed. rev. and enl. New York: McGraw-Hill, 1915.

MLA (9th ed.) Citation

Spofford, Charles Milton. The Theory of Structures. 2nd ed. rev. and enl. McGraw-Hill, 1915.