APA

United States, . (1990). U.S. standard for terminal instrument procedures (TERPS). [Washington, D.C: .

Chicago

United States, . 1990. U.S. standard for terminal instrument procedures (TERPS). [Washington, D.C: .

Harvard

United States, . (1990). U.S. standard for terminal instrument procedures (TERPS). [Washington, D.C: .

MLA

United States, . U.S. standard for terminal instrument procedures (TERPS). [Washington, D.C: . 1990.