na YOGYA-02090000002987 20090227020603.0 ind 010-020900000002987 500.1 500.1 Cra S CRAIG, Gerald S Science plans for tomorrow by Gerald S. Craig and John Urban New York Ginn and Company 1951 448 hlm ilus 21 cm Indeks Perkembangan - Ilmu pengetahuan Ilmu pengetahuan - Perkembangan URBAN, John YOPDYOG(B) 02-01-06 1 fwhrtrev a000016812