Young people's science encyclopedia.
Edited by the Staff of National College of Education, Evanston, Ill.
- Chicago, Childrens Press [1991]
- v. 19,1807-1896 p. : illus. (part col.), ports., col. maps. 26 cm.
Vol. 1-19, continuously paged. Vol. 20: Parents' and teachers' guide, index, and bibliography (p. 77-91)
61017925
Science--Dictionaries, Juvenile.
Q121 / .Y6
503
Vol. 1-19, continuously paged. Vol. 20: Parents' and teachers' guide, index, and bibliography (p. 77-91)
61017925
Science--Dictionaries, Juvenile.
Q121 / .Y6
503