TY  - BK
AU  - Alden,P.
TI  - Finding the birds in Western Mexico:  A guide to the States of Sonora, Sinaloa, and Nayarit
U1  - 598.2972 
PY  - 1969///
CY  - Tucson, AZ (USA)
PB  - University of Arizona Press, 
ER  -