APA

United States, . (1980). United States standard for terminal procedures (TERPS). [Washington, D.C: .

Chicago

United States, . 1980. United States standard for terminal procedures (TERPS). [Washington, D.C: .

Harvard

United States, . (1980). United States standard for terminal procedures (TERPS). [Washington, D.C: .

MLA

United States, . United States standard for terminal procedures (TERPS). [Washington, D.C: . 1980.