Chumas, S. J., & Hartman, J. E. Directory of United States standardization activities.
Chicago Style (17th ed.) CitationChumas, Sophie J., and Joan E. Hartman. Directory of United States Standardization Activities.
MLA (9th ed.) CitationChumas, Sophie J., and Joan E. Hartman. Directory of United States Standardization Activities.
Warning: These citations may not always be 100% accurate.