Janice VanCleave′s A+ Projects in Astronomy – Winning Experiments for Science Fairs & Extra Credit
Autor JP VanCleave
8 noi 2001
Paperback
Preț: 71.51 lei
3-5 săpt.
JP VanCleave
Janice VanCleave′s Science Through the Ages
Autor JP VanCleave
14 aug 2002
Paperback
Preț: 86.59 lei
3-5 săpt.