APA (7th ed.) Citation

Fayen, E. G., & Lancaster, F. W. (1973). Information retrieval: On-line. Melville Pub.

Chicago Style (17th ed.) Citation

Fayen, Emily Gallup, and Frederick Wilfrid Lancaster. Information Retrieval: On-line. Los Angeles: Melville Pub, 1973.

MLA (9th ed.) Citation

Fayen, Emily Gallup, and Frederick Wilfrid Lancaster. Information Retrieval: On-line. Melville Pub, 1973.