TY  - BOOK
AU  - Breck, Allen D.
TI  - Biology, History and natural philosophy: edited by Allen D. Breck ... [at al.]
SN  - 0-306-30573-9.
U1  - 574.01, 
PY  - 1972///
CY  - New York
PB  - Plenum Press
N1  - Based on the second international colloquium held at the University of Denver
ER  -