Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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