Nature study for conservation ; a handbook for environmental education.

Nature study for conservation ; a handbook for environmental education.

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Bibliografiska uppgifter
Huvudupphovsman: Brainerd, John W. 1918
Materialtyp: Bok
Språk:English
Publicerad: New York Macmillan c1971.
Ämnen:
Conservation of natural resources.
Study and teaching.