Hill, N., & Carnegie, A. (1972). The think and grow action pack: Featuring Think and grow rich. National Book Store.
Chicago-referens (17:e uppl.)Hill, Napoleon, och Andrew Carnegie. The Think and Grow Action Pack: Featuring Think and Grow Rich. Manila: National Book Store, 1972.
MLA-referens (9:e uppl.)Hill, Napoleon, och Andrew Carnegie. The Think and Grow Action Pack: Featuring Think and Grow Rich. National Book Store, 1972.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.