Cita APA

Schenck, H. H. (1975). The world's submarine telephone cable systems. U.S. Dept. of Commerce, Office of Telecommunications.

Citación estilo Chicago

Schenck, H. H. The World's Submarine Telephone Cable Systems. [Washington]: U.S. Dept. of Commerce, Office of Telecommunications, 1975.

Cita MLA

Schenck, H. H. The World's Submarine Telephone Cable Systems. U.S. Dept. of Commerce, Office of Telecommunications, 1975.