APA (7th ed.) Citation

Smith, S. F. (1969). A comparative study of mechanized search languages, by S. F. Smith and Ralph M. Shoffner.

Chicago Style (17th ed.) Citation

Smith, Stephen F. A Comparative Study of Mechanized Search Languages, by S. F. Smith and Ralph M. Shoffner. [Berkeley] Institute of Library Research, University of California, 1969.

MLA (9th ed.) Citation

Smith, Stephen F. A Comparative Study of Mechanized Search Languages, by S. F. Smith and Ralph M. Shoffner. 1969.