APA

Blumenthal L. A., . (19851976). Successful business writing: how to write effective letters, proposals, résumés, and speeches. New York: Perigee Books.

Chicago

Blumenthal Lassor A, . 19851976. Successful business writing: how to write effective letters, proposals, résumés, and speeches. New York: Perigee Books.

Harvard

Blumenthal L. A., . (19851976). Successful business writing: how to write effective letters, proposals, résumés, and speeches. New York: Perigee Books.

MLA

Blumenthal Lassor A, . Successful business writing: how to write effective letters, proposals, résumés, and speeches. New York: Perigee Books. 19851976.