APA (7th ed.) Citation

Mahle, J. D., Jr. (1969). Information Retrieval System.

Chicago Style (17th ed.) Citation

Mahle, Jack D., Jr. Information Retrieval System. 1969.

MLA (9th ed.) Citation

Mahle, Jack D., Jr. Information Retrieval System. 1969.

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