Cita APA (7th ed.)
Adair James. (1989). Problem solving: A top-down approach. Scott, Foresman and Co..
Cita Chicago (17th ed.)
Adair James. Problem Solving: A Top-down Approach. Illinois: Scott, Foresman and Co., 1989.
Cita MLA (9th ed.)
Adair James. Problem Solving: A Top-down Approach. Scott, Foresman and Co., 1989.
Atenció: Aquestes cites poden no estar 100% correctes.