TY  - BOOK
TI  - Mexico: a selected collection of doctoral dissertations, 1861-1983 searched
PY  - 1980///?]
CY  - Ann Arbor, Mich.
PB  - University Microfilms International
KW  - Tesis y disertaciones académicas
KW  - México
KW  - Bibliografía
N1  - Folletería permanente
ER  -