TY  - GEN
AU  - Warren, Leonard
AU  - Koprowski, Hilary
ED  - Multidisciplinary Symposium
ED  - Wistar Institute
TI  - New perspectives on evolution
T2  - The  Wistar symposium series
SN  - 0471560685
PY  - 1991///
CY  - New York
PB  - Wiley-Liss
ER  -