TY  - BOOK
AU  - 3G E-Learning LLC
TI  - Earth and life science / 
SN  - 9781680953794
U1  - 550 
PY  - 2017///
CY  - New York, USA: 
PB  - 3G E-Learning LLC, 
KW  - Earth and life science
N1  - includes  index.
ER  -