APA (7th ed.) Citation
Ernst, G. W. (1969). GPS: <a> case study in generality and problem solving. Academic Press.
Chicago Style (17th ed.) Citation
Ernst, George W. GPS: <a> Case Study in Generality and Problem Solving. New York: Academic Press, 1969.
MLA (9th ed.) Citation
Ernst, George W. GPS: <a> Case Study in Generality and Problem Solving. Academic Press, 1969.
Warning: These citations may not always be 100% accurate.