Isenhour, Thomas L. Passing freshman chemistry : prerequisite skills and concepts / T. L. Isenhour. - New York : Harcourt France Jvanovich, 1981. - viii, 177 p. : ill. ; 24 cm. Open access. ISBN: 015568230X LCCN: 81822203 Subjects--Topical Terms: Chemistry--Problems, exercises, etc.