Cita APA (7th ed.)

Breen, G. E., & Blankenship, A. (1982). Do-it-yourself marketing research (2d ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Breen, George Edward, i A.B Blankenship. Do-it-yourself Marketing Research. 2d ed. New York: McGraw-Hill, 1982.

Cita MLA (9th ed.)

Breen, George Edward, i A.B Blankenship. Do-it-yourself Marketing Research. 2d ed. McGraw-Hill, 1982.