APA

Firmage D. A., . (1980). Fundamental theory of structures. New York: Robert E. Krieger.

Chicago

Firmage D Allan, . 1980. Fundamental theory of structures. New York: Robert E. Krieger.

Harvard

Firmage D. A., . (1980). Fundamental theory of structures. New York: Robert E. Krieger.

MLA

Firmage D Allan, . Fundamental theory of structures. New York: Robert E. Krieger. 1980.