Wiley, 1991. — 224 p. — (Science for Every Kid Series). — ISBN10: 0471542652. — ISBN13: 978-0471542650. How long is the world's longest earthworm? How tall was a brachiosaurus? What's the average diameter of human hair? What's the circumference of the earth at the equator? Now you can discover the answers to these and other fascinating questions about math. Packed with...
Комментарии