Extending science concepts in the laboratory. Unit authors: A. S. Atal [and others] Edited by Manfred C. Schmid. - [Scarborough, Ont.] Prentice-Hall of Canada [1970] - xiii, 382 p. illus. 26 cm. Bibliography: p. 379-382. ISBN: 0132980347 LCCN: 75129559 Nat. Bib. No.: C*** Subjects--Topical Terms: Science--Laboratory manuals. LC Class. No.: Q161 / .E93 Dewey Class. No.: 502/.8