TY  - BOOK
AU  - Williams,George C.
ED  - ebrary, Inc.
TI  - Natural selection: domains, levels, and challenges 
T2  - Oxford series in ecology and evolution
AV  - QH375 .W52 1992eb
U1  - 577.01/62 20
PY  - 1992///
CY  - New York
PB  - Oxford University Press
KW  - Natural selection
KW  - Variation (Biology)
KW  - Electronic books
KW  - local
N1  - Includes bibliographical references and index; Electronic reproduction; Palo Alto, Calif.; ebrary; 2011; Available via World Wide Web; Access may be limited to ebrary affiliated libraries
UR  - http://site.ebrary.com/lib/strathmore/Doc?id=10085355
ER  -