APA (7th ed.) Citation

Frost, R. A. (1986). Introduction to knowledge base systems. Collins.

Chicago Style (17th ed.) Citation

Frost, R. A. Introduction to Knowledge Base Systems. London: Collins, 1986.

MLA (9th ed.) Citation

Frost, R. A. Introduction to Knowledge Base Systems. Collins, 1986.

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