Gaya APA
Dowling, B, T., McDougal, M. (1982).
Business Concepts for English Practice .
San Francisco:
Newbury House Publishing ; Inc.
Gaya MLA
Dowling, Barbara, Tolley., McDougal, Marianne.
"Business Concepts for English Practice".
San Francisco:
Newbury House Publishing ; Inc,
1982.
Text.