TY  - BOOK
AU  - Piltz,Albert
AU  - Gruver,William John
TI  - Science equipment and materials: science kits,
AV  - L111 .A6 1963, no. 30
PY  - 1963///]
CY  - [Washington]
PB  - U.S.Dept. of Health, Education, and Welfare, Office of Education ; [for sale by the Superintendent of Documents, U.S. Govt. Print. Off.
KW  - Science
KW  - Study and teaching
KW  - Teaching
KW  - Aids and devices
N1  - "OE-29049."; Copies 1 and 3 with: Education in Czechoslovakia / Nellie Apanasewicz. Washington : U.S.Dept. of Health, Education, and Welfare, Office of Education, 1963. Bound together subsequent to publication; Bibliography : p.26
ER  -