Holtzclaw, E., & Holtzclaw, K. (2013). Laddering: Unlocking the potential of consumer behavior. John Wiley & Sons, Inc..
Lua i Stíl Chicago (17ú heag.)Holtzclaw, Eric, agus Kaitlyn Holtzclaw. Laddering: Unlocking the Potential of Consumer Behavior. Hoboken, N.J.: John Wiley & Sons, Inc., 2013.
Lua MLA (9ú heag.)Holtzclaw, Eric, agus Kaitlyn Holtzclaw. Laddering: Unlocking the Potential of Consumer Behavior. John Wiley & Sons, Inc., 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.