Idealism and Christian PhilosophyJames S. Spiegel, Steven B. Cowan · First published 2016Open the Tome
Schaum's outline of theory and problems of statistics in SI unitsMurray R. Spiegel, M. Spiegel, Larry Stephens, Schaum, SPIEGEL · First published 1961Open the Tome
Schaum's outline of theory and problems of vector analysisMurray R. Spiegel · First published 1959Open the Tome