A system for coding, filing and using bibliographical material for research purposes.

• 1 January 1947
• journal article
• other
• Published by American Psychological Association (APA) in Journal of Applied Psychology
• Vol. 31  (3) , 329-339
• https://doi.org/10.1037/h0061119

Abstract

Keywords

• BIBLIOGRAPHY
• LIBRARIES
• RESEARCH/METHODS