Astronomy activities and experiments

Bibliografiske detaljer
Hovedforfatter:	Kelsey, Linda
Andre forfattere:	Hoff, Darrel B., Neff, John S.
Format:	Bog
Sprog:	English
Udgivet:	Debuque, Iowa Kendall / Hunt Publishing c1974.
Fag:	Astronomy > Problems, exercises, examinations.