APA (7th ed.) Citation

Ryerson, M. (1976). Gunfire at purgatory gate. Major Books.

Chicago Style (17th ed.) Citation

Ryerson, Martin. Gunfire at Purgatory Gate. Canoga Park, Ca: Major Books, 1976.

MLA (9th ed.) Citation

Ryerson, Martin. Gunfire at Purgatory Gate. Major Books, 1976.

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