TY  - BOOK
AU  - Clifford Johnson
TI  - Introduction to natural selection
SN  - 0-8391-0936-9
U1  - 575.0162 
PY  - 1976///
CY  - Baltimore
PB  - University Park Press
N1  - Clifford Johnson: Introduction to natural selection.  Baltimore.  University Park Press, 1976. 0-8391-0936-9--(575.0162JOH)
ER  -