Cita APA (7a ed.)

Kupfer, H., Hilsdorf, H. K., & Rusch, H. (1969). Behaviour of concrete under biaxial stresses. American Concrete Institute.

Cita Chicago Style (17a ed.)

Kupfer, Helmut, Hubert K. Hilsdorf, y Hubert Rusch. Behaviour of Concrete Under Biaxial Stresses. Michigan: American Concrete Institute, 1969.

Cita MLA (8a ed.)

Kupfer, Helmut, et al. Behaviour of Concrete Under Biaxial Stresses. American Concrete Institute, 1969.