Claassen, Howard H. The noble gases [by] Howard H. Claassen. - [Boston] Heath [1966] - vii, 117 p. illus. 21 cm. - Topics in modern chemistry . 921004 Includes bibliographies. LCCN: 66018442 Subjects--Topical Terms: Gases, Rare. LC Class. No.: QD162 / .C56 Dewey Class. No.: 546.75