Notkin, Jerome J.
Machines How and why wonder books of Machines. Jerome J. Notkin and Sidney Gulkin; Illustrated by George J. Zaffo - New York Grosset & Dunlap, 1960 - 48 p. - The how and why wonder book of .
Machines--how things work
j621 Not 26
Machines How and why wonder books of Machines. Jerome J. Notkin and Sidney Gulkin; Illustrated by George J. Zaffo - New York Grosset & Dunlap, 1960 - 48 p. - The how and why wonder book of .
Machines--how things work
j621 Not 26