APA aipamena

Kerr, J. R., & Littlefield, J. E. Marketing: An Environemental Approach.

Chicago Style aipamena

Kerr, John R., and James E. Littlefield. Marketing: An Environemental Approach. :.

MLA aipamena

Kerr, John R., and James E. Littlefield. Marketing: An Environemental Approach.