Gaya APA
Cramer, R, L, [.
(1981).
Spelling: Words and Skills
(
Ed.1981)
.
London:
Scott,Foresman and Company.
Gaya MLA
Cramer, Ronald, L., [et.al].
"Spelling: Words and Skills".
Ed.1981
London:
Scott,Foresman and Company,
1981.
Text.