APA (7e ed.) Bronvermelding
Sine, W. F. (2012). Guardian angel: Life and death adventures with Pararescue, the world's most powerful commando rescue force. Casemate.
Chicago (17e ed.) Bronvermelding
Sine, William F. Guardian Angel: Life and Death Adventures with Pararescue, the World's Most Powerful Commando Rescue Force. Philadelphia ; Oxford: Casemate, 2012.
MLA (9e ed.) Bronvermelding
Sine, William F. Guardian Angel: Life and Death Adventures with Pararescue, the World's Most Powerful Commando Rescue Force. Casemate, 2012.
Let op: Deze citaties zijn niet altijd 100% accuraat.