Cita APA (7th ed.)
Shurter, R. L. (1966). Critical thinking. McGraw-Hill.
Cita Chicago (17th ed.)
Shurter, Robert L. Critical Thinking. New York: McGraw-Hill, 1966.
Cita MLA (9th ed.)
Shurter, Robert L. Critical Thinking. McGraw-Hill, 1966.
Atenció: Aquestes cites poden no estar 100% correctes.