Dyfyniad APA

Vessel, M. F. (1963). Elementary school science teaching. Center for Applied Research in Education.

Dyfyniad Arddull Chicago

Vessel, Matthew F. Elementary School Science Teaching. Washington: Center for Applied Research in Education, 1963.

Dyfyniad MLA

Vessel, Matthew F. Elementary School Science Teaching. Center for Applied Research in Education, 1963.

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