Online Public Access Catalogue (OPAC)Library,Documentation and Information Science Division
“A research journal serves that narrow
borderland which separates the known from the unknown”
-P.C.Mahalanobis
Keen, Martin L. The how and why wonder book of sound / written by Martin L. Keen ; illustrated by George J. Zaffo. - New York : Grosset & Dunlap, 1969. 48 p.: ill. ; 29 cm. - (How and why wonder books ) * Sound. * Series