73d annual report, fiscal year ended June 30, 1956. United States Civil Service Commission
MLA
73d Annual Report, Fiscal Year Ended June 30, 1956. United States Civil Service Commission. House Document / 85th Congress, 1st Session. House. Washington, DC, 1957
APA, 7th edition
(1957). 73d annual report, fiscal year ended June 30, 1956. United States Civil Service Commission. House document / 85th Congress, 1st session. House. Washington, DC
Chicago, 17th edition
73d annual report, fiscal year ended June 30, 1956. United States Civil Service Commission. House document / 85th Congress, 1st session. House. Washington, DC, 1957