APA (7th ed.) Citation

Young. (1994). SEALs, UDT, frogmen: Men under pressure. Ivy Books.

Chicago Style (17th ed.) Citation

Young. SEALs, UDT, Frogmen: Men Under Pressure. New York: Ivy Books, 1994.

MLA (8th ed.) Citation

Young. SEALs, UDT, Frogmen: Men Under Pressure. Ivy Books, 1994.