How much does the earth weigh?
measurement & mass
Shelburne Films.; AGC Educational Media
text
xx
Evanston, IL
AGC Educational Media
1995
monographic
und
: 1 videodisc (VCD) (15 min) : sd., col. ; 4 3/4 in.
English
Soil physics
Juvenile films
Soils
Composition
Juvenile films
Soil physics
Soils
Composition
631.43 H83 c1995
VCD
251212
20260803094145.0