APA (7th ed.) Citation

Hill, N. (1939). Think and grow rich; teaching, for the first time, the famous Andrew Carnege formula for money-making, based upon the thirteen proven steps to riches. Organized through 25 years of research, in collaboration with more than 500 distinguished men of great wealth, who proved by their own achievements that this philosophy is practical.

Chicago Style (17th ed.) Citation

Hill, Napoleon. Think and Grow Rich; Teaching, for the First Time, the Famous Andrew Carnege Formula for Money-making, Based upon the Thirteen Proven Steps to Riches. Organized Through 25 Years of Research, in Collaboration with More than 500 Distinguished Men of Great Wealth, Who Proved by Their Own Achievements That This Philosophy Is Practical. Meriden, Conn. : The Ralston society, 1939.

MLA (9th ed.) Citation

Hill, Napoleon. Think and Grow Rich; Teaching, for the First Time, the Famous Andrew Carnege Formula for Money-making, Based upon the Thirteen Proven Steps to Riches. Organized Through 25 Years of Research, in Collaboration with More than 500 Distinguished Men of Great Wealth, Who Proved by Their Own Achievements That This Philosophy Is Practical. 1939.

Warning: These citations may not always be 100% accurate.