Pascarella, P. (1979). Technology: Fire in a dark world. Van Nostrand Reinhold Company.
Cita Chicago Style (17a ed.)Pascarella, Perry. Technology: Fire in a Dark World. New York [i pozostałe]: Van Nostrand Reinhold Company, 1979.
Cita MLA (9a ed.)Pascarella, Perry. Technology: Fire in a Dark World. Van Nostrand Reinhold Company, 1979.
Precaución: Estas citas no son 100% exactas.