00541cam a2200169 4500 62117238 TxAuBib 20010726120000.0 010726s1956||||||||||||||||||||||||eng|u TLM MNV TxAuBib Broekel, Ray. You and the sciences of mankind / pictures by Mary Gehr. [Chicago : Childrens Press, [1956] 60 p. : ill. 20010726. Social sciences Outlines, syllabi, etc. Juvenile literature.