Whimbey, A., & Lochhead, J. (1991). Problem solving and comprehension (5th ed.). Lawrence Erlbaum.
Cita Chicago Style (17a ed.)Whimbey, Arthur, y Jack Lochhead. Problem Solving and Comprehension. 5th ed. Hillsdale, New Jersey [etc.]: Lawrence Erlbaum, 1991.
Cita MLA (9a ed.)Whimbey, Arthur, y Jack Lochhead. Problem Solving and Comprehension. 5th ed. Lawrence Erlbaum, 1991.
Precaución: Estas citas no son 100% exactas.