APA (7th ed.) Citation

Purdy, R. (1961). Applied science & technology index. H. W. Wilson.

Chicago Style (17th ed.) Citation

Purdy, Robert. Applied Science & Technology Index. New York: H. W. Wilson, 1961.

MLA (9th ed.) Citation

Purdy, Robert. Applied Science & Technology Index. H. W. Wilson, 1961.

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