Cita APA

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

Citación estilo Chicago

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

Cita MLA

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

Warning: These citations may not always be 100% accurate.