TY  - BOOK
AU  - HARSTEIN
TI  - NONCOMMUTATIVE RINGS
U1  - GN510HU39N 
PY  - 1968///
CY  - U.S.A
PB  - JOHN WILEY & SONS LTD
KW  - NONCOMMUTATIVE RINGS
N1  - MODERN BOOK HOUSE HOUSE
ER  -