Gaya APA

Cotton, David, Robbins, Sue. (2001). Business Class . England: LONGMAN.

Gaya Chicago

Cotton, David, Robbins, Sue. Business Class. England: LONGMAN, 2001. .

Gaya MLA

Cotton, David, Robbins, Sue. Business Class. England: LONGMAN, 2001. .

Gaya Turabian

Cotton, David, Robbins, Sue. Business Class. England: LONGMAN, 2001. .