TY  - BOOK
AU  - Botkin,Daniel B.
AU  - Keller,Edward A.
TI  - Environmental science: earth as a living planet 
SN  - 9781118427323 (hardback)
U1  - 363.7 22
KW  - Environmental sciences
KW  - Human ecology
N1  - Includes bibliographical references and index
ER  -