Gaya APA
Truett, L, J., Truett, D, B.
(1984).
Managerial Economics
.
Amerika:
SOUTH - WESTERN PUBLISHING.
Gaya MLA
Truett, Lila, J.., Truett, Dale, B..
"Managerial Economics".
Amerika:
SOUTH - WESTERN PUBLISHING,
1984.
Text.