APA (7th ed.) Citation

(2013). The St. Valentines Day Massacre. Adam Matthew Digital.

Chicago Style (17th ed.) Citation

The St. Valentines Day Massacre. Marlborough, Wiltshire: Adam Matthew Digital, 2013.

MLA (9th ed.) Citation

The St. Valentines Day Massacre. Adam Matthew Digital, 2013.

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