Investigating earth : an agent of change /

Bibliographic Details
Main Author:	Janke, Delmar
Corporate Author:	Harris County (Tex.). Department of Education
Format:	Microform Book
Language:	English
Published:	[Houston] : The Department, [publisher not identified] ; 1976.
Series:	Selected curriculum guides in microfiche ; no. 1277.
Subjects:	Conservation of natural resources > Study and teaching.

Description
Item Description:	Microform.
Physical Description:	[v], 68 pages : illustrations