Johnson, D. W., & Johnson, R. T. (1974). Instructional goal structure: Cooperative, competitive, or individualistic. [s.n.].
Cita Chicago Style (17a ed.)Johnson, David W., y Roger T. Johnson. Instructional Goal Structure: Cooperative, Competitive, or Individualistic. [S.l.]: [s.n.], 1974.
Cita MLA (9a ed.)Johnson, David W., y Roger T. Johnson. Instructional Goal Structure: Cooperative, Competitive, or Individualistic. [s.n.], 1974.
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