APA (7th ed.) Citation

Wessel, A. E. (1968). Some thoughts on machine indexing. [Rand Corp.].

Chicago Style (17th ed.) Citation

Wessel, Andrew E. Some Thoughts on Machine Indexing. [Santa Monica, Calif.]: [Rand Corp.], 1968.

MLA (9th ed.) Citation

Wessel, Andrew E. Some Thoughts on Machine Indexing. [Rand Corp.], 1968.

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