Cita APA

Ernst, G. W., & Newell, A. (1969). GPS: A case study in generality and problem solving. Academic Press.

Citación estilo Chicago

Ernst, George W., and Allen Newell. GPS: A Case Study in Generality and Problem Solving. New York: Academic Press, 1969.

Cita MLA

Ernst, George W., and Allen Newell. GPS: A Case Study in Generality and Problem Solving. New York: Academic Press, 1969.