APA (7th ed.) Citation

Cumbow, R. C. (1985). Once upon a time: The films of Sergio Leone. Scarecrow Press.

Chicago Style (17th ed.) Citation

Cumbow, Robert C. Once upon a Time: The Films of Sergio Leone. Metuchen, N.J: Scarecrow Press, 1985.

MLA (9th ed.) Citation

Cumbow, Robert C. Once upon a Time: The Films of Sergio Leone. Scarecrow Press, 1985.