Otto, W., & Koenke, K. (1969). Remedial teaching: Research and comment. Houghton Mifflin.
Cita Chicago (17th ed.)Otto, Wayne, i Karl Koenke. Remedial Teaching: Research and Comment. Boston: Houghton Mifflin, 1969.
Cita MLA (8th ed.)Otto, Wayne, i Karl Koenke. Remedial Teaching: Research and Comment. Houghton Mifflin, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.