Library of Congress. Classification Division, Martel, C., Perley, C. W., Stuntz, S. C., Meyer, H. H. B., & Voge, A. L. (1910). Classification. Government Printing Office.

Library of Congress. Classification Division, Charles Martel, Clarence W. Perley, S. C. Stuntz, Herman H. B. Meyer, and Adolph Law Voge. Classification. Washington: Government Printing Office, 1910.

Library of Congress. Classification Division, et al. Classification. Government Printing Office, 1910.