APA (7th ed.) Citation

Gadecki, C., & Heckart, C. (1997). ATM for dummies. IDG Books Worldwide.

Chicago Style (17th ed.) Citation

Gadecki, Cathy, and Christine Heckart. ATM for Dummies. Foster City, CA: IDG Books Worldwide, 1997.

MLA (8th ed.) Citation

Gadecki, Cathy, and Christine Heckart. ATM for Dummies. IDG Books Worldwide, 1997.