00716cam a2200193 4500 546004872 TxAuBib 20100621120000.0 ||||||s1968||||||||||||||||||||||||und|u (OCoLC)392885 TxAuBib Langer, William L. [Ed.], 1896-1977. An encyclopedia of world history : ancient, medieval, and modern, chronologically arranged / compiled and edited by William L. Langer. 4th ed., rev. and enl. Boston : Houghton Mifflin, 1968. xxxix, 1504 p : geneal. tables, maps ; 25 cm. 20101215. History Râesumâes, programmes, etc.