TY  - BOOK
AU  - Watts,David
TI  - Principles of biogeography: an introduction to the functional mechanisms of ecosystems 
SN  - 0070941459 :
U1  - 574.9 
PY  - 1971///
CY  - New York
PB  - McGraw-Hill
KW  - Biogeography
N1  - Includes bibliographical references and index
ER  -