TY  - BOOK
AU  - Ferrae,W.L., x
AU  - x
TI  - Differential calculus: x
SN  - x
U1  - 517.2/FED 
PY  - 1962///
CY  - London
PB  - E.L. Bks.
KW  - Calculus
N1  - Inlcudes
ER  -