APA (7th ed.) Citation

Gurewich, N., & Gurewich, O. (1995). Teach yourself database programming with Delphi in 21 days. Sams Pub..

Chicago Style (17th ed.) Citation

Gurewich, Nathan, and Ori Gurewich. Teach Yourself Database Programming with Delphi in 21 Days. Indianapolis, Ind.: Sams Pub., 1995.

MLA (9th ed.) Citation

Gurewich, Nathan, and Ori Gurewich. Teach Yourself Database Programming with Delphi in 21 Days. Sams Pub., 1995.

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