APA

United States, . (1978). Electronic equipment modification handbook-data switching equipment. [Washington, D.C: .

Chicago

United States, . 1978. Electronic equipment modification handbook-data switching equipment. [Washington, D.C: .

Harvard

United States, . (1978). Electronic equipment modification handbook-data switching equipment. [Washington, D.C: .

MLA

United States, . Electronic equipment modification handbook-data switching equipment. [Washington, D.C: . 1978.