APA (7th ed.) Citation

Lancaster, F., & Fayen, E. (1973). Information retrievel on-line. Melville Publ. Comp.

Chicago Style (17th ed.) Citation

Lancaster, F.W, and E.G Fayen. Information Retrievel On-line. Melville Publ. Comp, 1973.

MLA (8th ed.) Citation

Lancaster, F.W, and E.G Fayen. Information Retrievel On-line. Melville Publ. Comp, 1973.

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