APA (7th ed.) Citation

(2013). Once Upon a Time in the West. Adam Matthew Digital.

Chicago Style (17th ed.) Citation

Once Upon a Time in the West. Marlborough, Wiltshire: Adam Matthew Digital, 2013.

MLA (9th ed.) Citation

Once Upon a Time in the West. Adam Matthew Digital, 2013.

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