Gaya APA
Bowen, D, H.
(1991).
Software success: 1990 reference book
.
SAN JOSE:
DAVID H. BOWEN PUBLISHER.
Gaya MLA
Bowen, David, H..
"Software success: 1990 reference book".
SAN JOSE:
DAVID H. BOWEN PUBLISHER,
1991.
Text.