O'Brien, L. H., & Livingston, G. H. (1980). Early training estimation system: Final yearly report. U.S. Army Research Institute for the Behavioral and Social Sciences.
Chicago Style (17th ed.) CitationO'Brien, Lawrence H., and Gavin H. Livingston. Early Training Estimation System: Final Yearly Report. Alexandira, Virginia: U.S. Army Research Institute for the Behavioral and Social Sciences, 1980.
MLA (9th ed.) CitationO'Brien, Lawrence H., and Gavin H. Livingston. Early Training Estimation System: Final Yearly Report. U.S. Army Research Institute for the Behavioral and Social Sciences, 1980.
Warning: These citations may not always be 100% accurate.