APA-viite (7. p.)
Combs, A. W. Perceiving, Behaving, Becoming: A New Focus for Education. Association for Supervision and Curriculum Development.
Chicago-viite (17. p.)
Combs, Arthur W. Perceiving, Behaving, Becoming: A New Focus for Education. Alexandria, EUA: Association for Supervision and Curriculum Development.
MLA-viite (9. p.)
Combs, Arthur W. Perceiving, Behaving, Becoming: A New Focus for Education. Association for Supervision and Curriculum Development.
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