either to fill missing editions or to fill-up, 88 editions of the magazine are at your disposal - see how many you can get before it's pulled-off Rapidshare! - as this mag is renowned for getting pulled quickly ; )
AAAS Science Magazine: The world's leading journal of original scientific research, global news, and commentary (AAAS=The American Association for the Advancement of Science) if you want more info: www.sciencemag.org
Rosalind Charlesworth, Karen K. Lind, "Math & Science for Young Children, 6 edition" English | 2009 | ISBN: 1428375864 | 706 pages | PDF | 52,6 MB
MATH AND SCIENCE FOR YOUNG CHILDREN, 6th Edition is a unique reference that focuses on the integration of math and science along with the other important areas of child development during the crucial birth-through-eight age range.