Thornton, S. (1995). Children solving problems. Harvard University Press.
Cita Chicago Style (17a ed.)Thornton, Stephanie. Children Solving Problems. Cambridge, Mass.: Harvard University Press, 1995.
Cita MLA (8a ed.)Thornton, Stephanie. Children Solving Problems. Harvard University Press, 1995.
Precaución: Estas citas no son 100% exactas.