00000cam a22000003i 4500 UP-1685594773861465325 Buklod 20070914154739.0 j|||||||||||||| | s| ||||||||||| 170904s1964 xx a r |||| u|eng d (iLib)UPBAG-00000193863 LC BAG rda eng AS 4 U83 B4 Behrman, Daniel author. Web of progress UNESCO at work in the science and technology Daniel Behrman. Paris United Nations Educational Scientific and Cultural Organization 1964. 103 pages illustrations 22 cm text rdacontent unmediated rdamedia volume rdacarrier United nations Educational Scientific and Cultural Organization. Science Study and teaching. FO UPBAG UPBAG-MAIN AS 4 U83 B4 Book