APA Citation

DUFFY, T. (1986). Four software tools: With WordPerfect, VP-Planner, and dBASE III Plus. Belmont, California: Wadworth Pub. Co..

Chicago Style Citation

DUFFY, Tim. Four Software Tools: With WordPerfect, VP-Planner, and DBASE III Plus. Belmont, California: Wadworth Pub. Co., 1986.

MLA Citation

DUFFY, Tim. Four Software Tools: With WordPerfect, VP-Planner, and DBASE III Plus. Belmont, California: Wadworth Pub. Co., 1986.

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