Gaya APA
Silverman, J.
(2009).
RULES OF THUMB : A Guide for Writers
(
Ed.7)
.
Hoboken, NJ:
Sams.
Gaya MLA
Silverman, Jay.
"RULES OF THUMB : A Guide for Writers".
Ed.7
Hoboken, NJ:
Sams,
2009.
Text.