Cita APA (7a ed.)

American Petroleum Institute. (1986). Specification for materials and testing for well cements. (3a. ed.). s.e..

Cita Chicago Style (17a ed.)

American Petroleum Institute. Specification for Materials and Testing for Well Cements. 3a. ed. Washignton: s.e., 1986.

Cita MLA (8a ed.)

American Petroleum Institute. Specification for Materials and Testing for Well Cements. 3a. ed. s.e., 1986.