TY  - BOOK
AU  - Langer,William L.
TI  - An Encyclopedia of world history, ancient, medieval, and modern, chronologically arranged
AV  - D 21 L35.1956
PY  - 1956///, 1952
CY  - Boston
PB  - Houghton Mifflin Co.
KW  - Historia -
KW  - Diccionarios
KW  - Historia mundial -
ER  -