APA (7th ed.) Citation

Humes, J. W. (1969). A linear model for the evaluation of user-interactive retrieval systems.

Chicago Style (17th ed.) Citation

Humes, John William. A Linear Model for the Evaluation of User-interactive Retrieval Systems. 1969.

MLA (9th ed.) Citation

Humes, John William. A Linear Model for the Evaluation of User-interactive Retrieval Systems. 1969.

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