Ryan, K., & Cooper, J. M. (1998). Those who can, teach (8th ed.). Houghton Mifflin.
Cita Chicago Style (17a ed.)Ryan, Kevin, y James M. Cooper. Those Who Can, Teach. 8th ed. Boston: Houghton Mifflin, 1998.
Cita MLA (9a ed.)Ryan, Kevin, y James M. Cooper. Those Who Can, Teach. 8th ed. Houghton Mifflin, 1998.
Precaución: Estas citas no son 100% exactas.