Classification principles and policies
MLA
Classification Principles and Policies. Reprinted ed. Washington, D.C.: U.S. Civil Service Commission, 1976
APA, 7th edition
(1976). Classification principles and policies. Reprinted ed. Washington, D.C.: U.S. Civil Service Commission
Chicago, 17th edition
Classification principles and policies. Reprinted ed. Washington, D.C.: U.S. Civil Service Commission, 1976