Gaya APA
Schell, Erwin H. (1972).
technique of executive control (8th).
New York:
McGraw-Hill.
Gaya Chicago
Schell, Erwin H.
technique of executive control.
8th
New York:
McGraw-Hill,
1972.
Text.
Gaya MLA
Schell, Erwin H.
technique of executive control.
8th
New York:
McGraw-Hill,
1972.
Text.
Gaya Turabian
Schell, Erwin H.
technique of executive control.
8th
New York:
McGraw-Hill,
1972.
Print.