APA (7th ed.) Citation

Gilchrist, A., & Gaster, K. (1973). A compressed term index language for library and information science. ASLIB.

Chicago Style (17th ed.) Citation

Gilchrist, Alan, and Kathleen Gaster. A Compressed Term Index Language for Library and Information Science. London: ASLIB, 1973.

MLA (9th ed.) Citation

Gilchrist, Alan, and Kathleen Gaster. A Compressed Term Index Language for Library and Information Science. ASLIB, 1973.

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