Roger, Keely History : 20th century world / Causes, practises and effect of wars IBDP Keely Roger, Jo Thomas - Malaysia Pearson Education 2010 - 329 s. fotoğ. hrt., tbl. 27 cm. Lise Kütüphanesi ISBN: 9780435994433 Subjects--Topical Terms: IB--Tarih--20. yy.IB--History--20th centry Dewey Class. No.: 909.82