- Paperback: 55 pages
- Publisher: Natl Science Teachers Assn; Revised edition (June 1990)
- Language: English
- ISBN-10: 0873550676
- ISBN-13: 978-0873550673
- Product Dimensions: 10.6 x 8.3 x 0.3 inches
- Shipping Weight: 8 ounces
- Amazon Best Sellers Rank: #3,062,341 in Books (See Top 100 in Books)
Would you like to update product info or give feedback on images?
