Pulleys

Text and pictures introduce the pulley, a simple machine used primarily to lift heavy objects.

Rourke Pub.
2010
9780329733605
book

Holdings

hidmidmiidnidwidlocation_codelocationbarcodecallnumdeweycreatedupdated
40064342232262262282270405032GENE223GENE28675621.8 ARM621.815774597521709567815
100287747146172427282270405032VCP434VCP0045584621.8 Arm621.815802161721736800991