Cita APA (7th ed.)

Johnson, R. P. (1967). Structural concrete. McGraw-Hill.

Cita Chicago (17th ed.)

Johnson, R. P. Structural Concrete. London, New York [etc.]: McGraw-Hill, 1967.

Cita MLA (8th ed.)

Johnson, R. P. Structural Concrete. McGraw-Hill, 1967.

Atenció: Aquestes cites poden no estar 100% correctes.