Kneeland, N., Bernard, L., & Tallman, G. B. (1942). Selling to today's customer. Ginn.
Lua i Stíl Chicago (17ú heag.)Kneeland, Natalie, Louise Bernard, agus Gerald Bruce Tallman. Selling to Today's Customer. Boston: Ginn, 1942.
Lua MLA (8ú heag.)Kneeland, Natalie, et al. Selling to Today's Customer. Ginn, 1942.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.