RecordNumber

42333

Author

Schwartz, Julius, 1907-

Title

Itʹs fun to Know why; experiments with things agroun us

Author Statement

by juliu schwartz

Publication

Whittlesey Hous

Publication Year

[c1952]

Collation

125 p.: ill

Subject

Science

Main Class

372

Sub Class

.86

Cutter no

S399i

وارد كنندة اطلاعات

soltani^d//