APA (7th ed.) Citation

Simpson, A. (1993). Alan Simpson's Dos secrets Unleashed. SAMS Publishing.

Chicago Style (17th ed.) Citation

Simpson, Alan. Alan Simpson's Dos Secrets Unleashed. Carmel, Ind.: SAMS Publishing, 1993.

MLA (9th ed.) Citation

Simpson, Alan. Alan Simpson's Dos Secrets Unleashed. SAMS Publishing, 1993.

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