APA Style
Duckworth, W.E.. (1964).
Wat is operationele research ? .
Utrecht:
Marka-Boeken.
Chicago Style
Duckworth, W.E..
Wat is operationele research ?.
Utrecht:
Marka-Boeken,
1964.
Hard Copy.
MLA Style
Duckworth, W.E..
Wat is operationele research ?.
Utrecht:
Marka-Boeken,
1964.
Hard Copy.
Turabian Style
Duckworth, W.E..
Wat is operationele research ?.
Utrecht:
Marka-Boeken,
1964.
Hard Copy.