Horrigan, Philip A. The challenge of chemistry [by] Philip A. Horrigan. - New York McGraw-Hill [1970] - x, 243 p. illus. 23 cm. LCCN: 74095808 //r86 Subjects--Topical Terms: ChemistryChemistry, Technical LC Class. No.: QD33 / .H827 Dewey Class. No.: 540