Gaya APA
Hopper, G, M., Mandell, S, L.
(1984).
Understanding computers
(
2nd. ed.)
.
St. Paul:
West Pub. Co..
Gaya MLA
Hopper, Grace, Murray., Mandell, Steven, L.
"Understanding computers".
2nd. ed.
St. Paul:
West Pub. Co.,
1984.
Text.