TY  - BOOK
AU  - Berlocher, Stewart H
AU  - Howard, Daniel J
TI  - Endless forms : species and speciation
SN  - 9780195109016
SN  - 97031461
U1  - 576.86 HOW 
PY  - 1998///
CY  - Oxford
PB  - Oxford University Press
KW  - Species
N1  - Includes bibliographical references and index
ER  -