Gaya APA
CHURCHMAN, C. West. (1968).
The Systems Approach .
New York:
A Delta Book.
Gaya Chicago
CHURCHMAN, C. West.
The Systems Approach.
New York:
A Delta Book,
1968.
.
Gaya MLA
CHURCHMAN, C. West.
The Systems Approach.
New York:
A Delta Book,
1968.
.
Gaya Turabian
CHURCHMAN, C. West.
The Systems Approach.
New York:
A Delta Book,
1968.
.