APA (7th ed.) Citation

Ryan, W., & Pitman, W. (1998). Noah's flood. Simon & Schuster.

Chicago Style (17th ed.) Citation

Ryan, William, and Walter Pitman. Noah's Flood. London: Simon & Schuster, 1998.

MLA (9th ed.) Citation

Ryan, William, and Walter Pitman. Noah's Flood. Simon & Schuster, 1998.

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