APA (7e ed.) Bronvermelding
(1945). Ordnance Maintenance: Wrist Watches, pocket Watches, stop watches, and clocks. US Gov. Print. Off.
Chicago (17e ed.) Bronvermelding
Ordnance Maintenance: Wrist Watches, Pocket Watches, Stop Watches, and Clocks. Washington: US Gov. Print. Off, 1945.
MLA (9e ed.) Bronvermelding
Ordnance Maintenance: Wrist Watches, Pocket Watches, Stop Watches, and Clocks. US Gov. Print. Off, 1945.
Let op: Deze citaties zijn niet altijd 100% accuraat.