TY  - BOOK
AU  - International Union of American Republics
TI  - Monthly bulletin of the international bureu of the american republics: tomos de april, may, ogust, october, november
U1  - 600 
PY  - 1906///
CY  - U.S.A
PB  - government printing office
KW  - Tecnología (ciencias aplicadas)
ER  -