APA Citation

Frank Bettger. How i multiplied my income and happiness in selling. London: Mandarin.

Chicago Style Citation

Frank Bettger. How I Multiplied My Income and Happiness in Selling. London: Mandarin.

MLA Citation

Frank Bettger. How I Multiplied My Income and Happiness in Selling. London: Mandarin.

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