청구기호 |
GE70 .K75 1999eb |
형태사항 |
xxvii, 145 p. : ill. ; 28 cm.
|
언어 |
English |
서지주기 |
Includes bibliographical references (p. 131-132) and index.
|
주제 |
Environmental sciences --Study and teaching (Elementary)
Environmental sciences --Study and teaching (Elementary) --Activity programs.
|
보유판 및 특별호 저록 |
Original 1563085658 , 98054378 , 40489305
|
ISBN |
0585202672 (electronic bk.)
|