TY  - DATA
ED  - Discovery Channel School
ED  - Discovery Communications Inc.
TI  - Conservation of natural resources
PY  - 2001///
CY  - [Bethesda, Md.]
PB  - Discovery Communications Inc.
KW  - Conservation of natural resources
KW  - Juvenile literature
KW  - Natural resources
KW  - Study and teaching
KW  - Computer programs
KW  - Ecology
N1  - Teacher's guide in PDF and Microsoft Word format
N2  - Explain about conservation includes the meaning, process by which plastics bottles are recycled, ecological water treatment system, genetic engineering, etc
ER  -