TY  - BOOK
AU  - Sperry, Armstrong
TI  - Great river; Wide land : : the rio grande through history 
U1  - 976.4 Sp37 1967 
PY  - 1967///
CY  - New York : 
PB  - The Macmillan Co., 
KW  - Rio Grande Valley (Colorado - Mexico and Texas) - History - Juvenile Literature
KW  - Rio Grande Valley (Colorado - Mexico and Texas) - Juvenile Literature
ER  -