First Year Calculus by Einar Hille and Saturnino Salas published by Blaisdell Publishing in 1968

Published by Blaisdell Publishing Company, a Division of Ginn and Company in this paperback edition from 1968 in the US.  Written by Einar Hille and Saturnino Salas, this cope is in very good condition with minimal rubs or creasing and owner's name to front endpage.