Gall, J. (1977). Systemantics: How systtems work and especially how they fail. New York: Pocket Bokks.
Citación estilo ChicagoGall, John. Systemantics: How Systtems Work and Especially How They Fail. New York: Pocket Bokks, 1977.
Cita MLAGall, John. Systemantics: How Systtems Work and Especially How They Fail. New York: Pocket Bokks, 1977.
Precaución: Estas citas no son 100% exactas.