New Unesco source book for science teaching.

New Unesco source book for science teaching.

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Xehetasun bibliografikoak
Erakunde egilea: United Nations Educational, Scientific and Cultural Organization
Formatua: Liburua
Hizkuntza:English
Argitaratua: Paris Unesco 1973.
Edizioa:[New rev. ed.].
Gaiak:
Science > Study and teaching.
Science > Experiments'.