Boltyansky, V.G.
Differentiation explained - Moscow MIR Publishers 1977 - 62p.
Translated from the Russian by M. Samokhvalov, Cand.
517.9 BOL
Differentiation explained - Moscow MIR Publishers 1977 - 62p.
Translated from the Russian by M. Samokhvalov, Cand.
517.9 BOL