Gaya APA
KRUMM, R.
(1982).
Wordperfect 4.2 power tools
(
Cet.1)
.
Portland:
MIS Press.
Gaya MLA
KRUMM, Rob.
"Wordperfect 4.2 power tools".
Cet.1
Portland:
MIS Press,
1982.
Text.