APA Citation

Walker. (1990). Knowledge systems and prolog: Developing expert, database, and natural language systems (2nd ed.). Reading, Mass.: Addison-Wesley.

Chicago Style Citation

Walker. Knowledge Systems and Prolog: Developing Expert, Database, and Natural Language Systems. 2nd ed. Reading, Mass.: Addison-Wesley, 1990.

MLA Citation

Walker. Knowledge Systems and Prolog: Developing Expert, Database, and Natural Language Systems. 2nd ed. Reading, Mass.: Addison-Wesley, 1990.

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