TY  - BOOK
AU  - RITT,Joseph Fels
AU  - 
TI  - Differential algebra. 
U1  - 512/RID 
PY  - 0000///Dover Pub.
PY  - 1950///
CY  - New York. 
KW  - Algebra.
KW  - Algebra
N1  - Includes index and bibliography.
ER  -