TY  - BOOK
AU  - Potapova, N. F.
TI  - Learning Russian : : Pt. 4 
U1  - 491.7 
PY  - 1967///
CY  - Moscow
PB  - Progress Publishers
KW  - Russian language
KW  - Textbooks for foreign speakers
KW  - English
N1  - Includes bibliographical references and index
ER  -