APA (7th ed.) Citation

Stevens, M. E. (1970). Automatic indexing: A state-of-the-art report. National bureau of standards.

Chicago Style (17th ed.) Citation

Stevens, Mary Elizabeth. Automatic Indexing: A State-of-the-art Report. Washington: National bureau of standards, 1970.

MLA (9th ed.) Citation

Stevens, Mary Elizabeth. Automatic Indexing: A State-of-the-art Report. National bureau of standards, 1970.