APA (7th ed.) Citation

Spence, R. (1993). Rick Spence's Clipper 5.2: Power programmer's guide. Sybex.

Chicago Style (17th ed.) Citation

Spence, Rick. Rick Spence's Clipper 5.2: Power Programmer's Guide. Alameda, CA: Sybex, 1993.

MLA (8th ed.) Citation

Spence, Rick. Rick Spence's Clipper 5.2: Power Programmer's Guide. Sybex, 1993.

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