Hass, G. (1987). Curriculum planning: A new approach (2nd ed.). Allyn and Bacon.
Chicago-viite (17. p.)Hass, Glen. Curriculum Planning: A New Approach. 2nd ed. Boston: Allyn and Bacon, 1987.
MLA-viite (8. p.)Hass, Glen. Curriculum Planning: A New Approach. 2nd ed. Allyn and Bacon, 1987.
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