TY  - BOOK
AU  - Macdonald,Janet W.
AU  - Cole,I.
AU  - Nelson,Rebecca,editor
TI  - Investigating the earth
SN  - 0395206952
U1  - QB/631 
PY  - 1976///
CY  - Boston
PB  - Houghton Mifflin Company.
KW  - Earth
ER  -