Murray Spiegel
Schaum's Outline of Advanced Mathematics for Engineers and Scientists (Schaum's Outline Series)
Schaum's Outline of Fourier Analysis with Applications to Boundary Value Problems
Schaum's Outline of Complex Variables, 2ed
Schaum's Outline of Complex Variables, 2ed (Schaum's Outlines)
Schaum's Outline of Calculus of Finite Differences and Difference Equations