APA

United States, . (1979). Investment policies, [practices] and performance of federal retirement systems. [Washington, D.C: .

Chicago

United States, . 1979. Investment policies, [practices] and performance of federal retirement systems. [Washington, D.C: .

Harvard

United States, . (1979). Investment policies, [practices] and performance of federal retirement systems. [Washington, D.C: .

MLA

United States, . Investment policies, [practices] and performance of federal retirement systems. [Washington, D.C: . 1979.