TY  - BOOK
AU  - Heyman,Josiah McC(Josiah McConnell)
ED  - University of Arizona.
TI  - Life and labor on the border: working people of northeastern Sonora, Mexico, 1886-1986 
SN  - 0-8165-1225-6
AV  - HD8119 .S662 H49
PY  - 1991///
CY  - Tucson, Arizona
PB  - University of Arizona
N1  - Incluye bibliografia
ER  -