Hill. (2007). Think and grow rich (The 21st century ed.). Napoleon Hill Associates.
Chicago Style (17th ed.) CitationHill. Think and Grow Rich. The 21st century ed. Kuala Lumpur: Napoleon Hill Associates, 2007.
MLA (8th ed.) CitationHill. Think and Grow Rich. The 21st century ed. Napoleon Hill Associates, 2007.
Warning: These citations may not always be 100% accurate.