TY  - BOOK
AU  - Watkins,T.H.
ED  - National Geographic Society (U.S.).
TI  - Natural America
SN  - 0792270606
AV  - QH104 .W37 1998
U1  - 508.73 21
PY  - 1998///
CY  - Washington, D.C.
PB  - National Geographic Society
KW  - Natural history
KW  - United States
KW  - Nature conservation
N1  - "Prepared by the Book Division, National Geographic Society."; Includes bibliographical references (p. 196) and index
ER  -