APA ציטוט

Regents pub. co. (1977). The Blue book of business English. Regent Pub.

Chicago Style (17th ed.) Citation

Regents pub. co. The Blue Book of Business English. New york: Regent Pub, 1977.

ציטוט MLA

Regents pub. co. The Blue Book of Business English. Regent Pub, 1977.