Esler, William K.
Teaching elementary science /
William K. Esler.
- 2d ed.
- Belmont, Calif. : Wadsworth Pub. Co., c1977.
- viii, 584 p. : ill. ; 26 cm.
Includes bibliographies and index.
053400489X
Science--Study and teaching (Elementary)
LB1585 / .E84 1977