Gaya APA
Guffey, Mary Ellen. (1986).
Business English, 2nd ed. (2nd.ed.).
Boston:
Kent Publishing.
Gaya Chicago
Guffey, Mary Ellen.
Business English, 2nd ed..
2nd.ed.
Boston:
Kent Publishing,
1986.
Text.
Gaya MLA
Guffey, Mary Ellen.
Business English, 2nd ed..
2nd.ed.
Boston:
Kent Publishing,
1986.
Text.
Gaya Turabian
Guffey, Mary Ellen.
Business English, 2nd ed..
2nd.ed.
Boston:
Kent Publishing,
1986.
Print.