Gaya APA
A., H., M., S.
(1953).
Business English and Letter Writing 1Ed.
(
1)
.
:
McGraw Hill, Inc..
Gaya MLA
A., HAGAR,Hubert., M., STEWART,Marie.
"Business English and Letter Writing 1Ed.".
1
:
McGraw Hill, Inc.,
1953.
Textbook.