APA (7th ed.) Citation

González del Valle, L., & Shaw, B. A. (1979). Luis Romero. Twayne.

Chicago Style (17th ed.) Citation

González del Valle, Luis, and Bradley A. Shaw. Luis Romero. Boston: Twayne, 1979.

MLA (9th ed.) Citation

González del Valle, Luis, and Bradley A. Shaw. Luis Romero. Twayne, 1979.