Gaya APA
Kirn, E.
(1989).
A COMPETENCY-BASED GRAMMAR 6:ISSUES AND ANSWERS
.
United States of America:
Random House.
Gaya MLA
Kirn, Elaine.
"A COMPETENCY-BASED GRAMMAR 6:ISSUES AND ANSWERS".
United States of America:
Random House,
1989.
Text.