APA (7th ed.) Citation

Fokker, D. W. (1989). Requirements for a User-Friendly OPAC.

Chicago Style (17th ed.) Citation

Fokker, Dirk W. Requirements for a User-Friendly OPAC. 1989.

MLA (9th ed.) Citation

Fokker, Dirk W. Requirements for a User-Friendly OPAC. 1989.

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