APA (7th ed.) Citation

Goeller, C. G. (1980). Writing and selling greeting cards. Writer, inc..

Chicago Style (17th ed.) Citation

Goeller, Carl G. Writing and Selling Greeting Cards. Boston: Writer, inc., 1980.

MLA (9th ed.) Citation

Goeller, Carl G. Writing and Selling Greeting Cards. Writer, inc., 1980.