MLA

Cowan, H.J. Architectural Structures; an Introduction to Structural Mechanics; First Metric Edition. London: Pitman, 1980.

APA

Cowan, H. (1980). Architectural structures; an introduction to structural mechanics; first metric edition. London: Pitman.

Chicago

Cowan, H.J. Architectural Structures; an Introduction to Structural Mechanics; First Metric Edition. London: Pitman, 1980.