Shertzer, B., & Stone, S. C. (1976). Fundamentals of guidance (3d ed.). Houghton Mifflin.
Cita Chicago Style (17a ed.)Shertzer, Bruce, y Shelley C. Stone. Fundamentals of Guidance. 3d ed. Boston: Houghton Mifflin, 1976.
Cita MLA (9a ed.)Shertzer, Bruce, y Shelley C. Stone. Fundamentals of Guidance. 3d ed. Houghton Mifflin, 1976.