Zapata, A. G. (1972). An instrument for measuring the science interests of grade school children.
Chicago-viite (17. p.)Zapata, Asuncion G. An Instrument for Measuring the Science Interests of Grade School Children. 1972.
MLA-viite (9. p.)Zapata, Asuncion G. An Instrument for Measuring the Science Interests of Grade School Children. 1972.
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