APA

United States, . (1972). Report to Congress: determination of non-profit organizations' eligibility for reduced postage rates should be improved, United States Postal Service. [Washington, D.C: .

Chicago

United States, . 1972. Report to Congress: determination of non-profit organizations' eligibility for reduced postage rates should be improved, United States Postal Service. [Washington, D.C: .

Harvard

United States, . (1972). Report to Congress: determination of non-profit organizations' eligibility for reduced postage rates should be improved, United States Postal Service. [Washington, D.C: .

MLA

United States, . Report to Congress: determination of non-profit organizations' eligibility for reduced postage rates should be improved, United States Postal Service. [Washington, D.C: . 1972.