Ball-point pens /

Explains how a ball-point pen works. Presents directions for constructing tools and devices with parts of pens and for using them in experiments and demonstrations.

Bibliographic Details
Main Author: Zubrowski, Bernie
Other Authors: Bourke, Linda
Format: Book
Language:English
Published: Boston : Little, Brown, [1979]
Edition:1st ed.
Series:Children's Museum activity book.
Subjects:

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