TY  - BOOK
AU  - Levin, Donald A., ed.
TI  - Hybridization: an evolutionary perspective
SN  - 0879333413
U1  - 575.28/LEV 
PY  - 1975///
CY  - Pennsylvania
PB  - Dowden, Hutchinson and Ross, Inc.
KW  - Evolution (Biology)
KW  - Hybridization
ER  -