TY  - BOOK
AU  - Walsh,Kenneth
TI  - Our Earth
SN  - 9781433336317 (pbk.)
AV  - QB631.4 .W36 2012
U1  - 525 23
PY  - 2012///]
CY  - Huntington Beach, CA
PB  - Teacher Created Materials
KW  - Planets
KW  - Earth
N2  - Introduces the Earth, discussing what its atmosphere is made of and how it was formed
ER  -