APA (7th ed.) Citation

Junkerjürgen, R., & Leone, S. Once upon a time in the west (1968).

Chicago Style (17th ed.) Citation

Junkerjürgen, Ralf, and Sergio Leone. Once upon a Time in the West (1968).

MLA (9th ed.) Citation

Junkerjürgen, Ralf, and Sergio Leone. Once upon a Time in the West (1968).

Warning: These citations may not always be 100% accurate.