TY  - BOOK
T1  - The Twentieth Century
T2  - Looking at history
A2  - Unstead, R. J.
LA  - English
PP  - London
PB  - Black
YR  - 1974
ED  - 1. publ.
UL  - https://glotrec.wdi-testing.gei.de/cat/Record/gei564456837
SN  - 0713614439
SN  - 0713614447
KW  - Lehr- und Lernressource
ER  -