APA

United States, . (1986). Tax policy: investment tax credit for offshore drilling rigs needs clarification. [Washington, D.C: .

Chicago

United States, . 1986. Tax policy: investment tax credit for offshore drilling rigs needs clarification. [Washington, D.C: .

Harvard

United States, . (1986). Tax policy: investment tax credit for offshore drilling rigs needs clarification. [Washington, D.C: .

MLA

United States, . Tax policy: investment tax credit for offshore drilling rigs needs clarification. [Washington, D.C: . 1986.