Hennings, George. Keep Earth clean, blue & green : : environmental activities for young people / [electronic resource] / George Hennings, Dorothy Grant Hennings.. — New York : : Citation Press,, 1976.. — vi, 250 p. : : ill. ; 21 cm.

Includes bibliographical references (p. 227-236).



Анотація:
A source book for elementary and junior high teachers which provides numerous interdisciplinary environmental activities.

ISBN: 0590074601 9780590074605 0590094033 (pbk.) 9780590094030 (pbk.)

LCCN: 75042336

Subjects--Topical Terms:
Environmental education.
Environmental protection--Study and teaching.

LC Class. No.: TD178 / .H46 1976

Dewey Class. No.: 363.6