Gaya APA

Swanson, C, P. (1992). McGraw Hill encyclopedia of science and technology 17 sor sup an interntional ì reference work in twenty volumes including an index . New York: .

Gaya MLA

Swanson, Carl, P.. "McGraw Hill encyclopedia of science and technology 17 sor sup an interntional ì reference work in twenty volumes including an index". New York: , 1992. Text.