APA

United States, . (1990). Unvouchered expenditures: Presidential and Vice Presidential expenditures for the periods reviewed were proper. [Washington, D.C: .

Chicago

United States, . 1990. Unvouchered expenditures: Presidential and Vice Presidential expenditures for the periods reviewed were proper. [Washington, D.C: .

Harvard

United States, . (1990). Unvouchered expenditures: Presidential and Vice Presidential expenditures for the periods reviewed were proper. [Washington, D.C: .

MLA

United States, . Unvouchered expenditures: Presidential and Vice Presidential expenditures for the periods reviewed were proper. [Washington, D.C: . 1990.