Cita APA (7a ed.)

Modis, T. (1993). Technological substitutions in the computer industry. [s.n.].

Cita Chicago Style (17a ed.)

Modis, Theodore. Technological Substitutions in the Computer Industry. [S.l.]: [s.n.], 1993.

Cita MLA (9a ed.)

Modis, Theodore. Technological Substitutions in the Computer Industry. [s.n.], 1993.