TY  - BOOK
AU  - Koehn,Richard K.
AU  - Nei,Masatoshi
TI  - Evolution of genes and proteins
SN  - 0878936041
U1  - 574.87328 
PY  - 1983///
CY  - Suderland, MA
PB  - Sinauer Associates, 
KW  - POLIMORFISMO GENETICO
ER  -