Halacy, D. S.
Solar science projects : formerly fun with the sun D. S. Halacy. - New York: Scholastic, 1959. - 96p.
PB
Eng
Solar energy-Experiments
Solar apparatus and apliances
621.47 / HAS
Solar science projects : formerly fun with the sun D. S. Halacy. - New York: Scholastic, 1959. - 96p.
PB
Eng
Solar energy-Experiments
Solar apparatus and apliances
621.47 / HAS