ZuTavern, A. B., & Bullock, A. E. (1938). The consumer investigates. Commercial Textbook Co. ; H.M. Rowe.
Lua i Stíl Chicago (17ú heag.)ZuTavern, A. B., agus Albert Ernest Bullock. The Consumer Investigates. South Pasadena, Calif. : Baltimore ; Chicago: Commercial Textbook Co. ; H.M. Rowe, 1938.
Lua MLA (8ú heag.)ZuTavern, A. B., agus Albert Ernest Bullock. The Consumer Investigates. Commercial Textbook Co. ; H.M. Rowe, 1938.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.