APA (7th ed.) Citation

Engel, J. F. (1971). Promotional strategy (Rev. ed.). R. D. Irwin.

Chicago Style (17th ed.) Citation

Engel, James F. Promotional Strategy. Rev. ed. Homewood, Ill: R. D. Irwin, 1971.

MLA (9th ed.) Citation

Engel, James F. Promotional Strategy. Rev. ed. R. D. Irwin, 1971.