00562cam a2200193 4500 106420558 TxAuBib 20080703120000.0 120702s2012||||||||||||||||||||||||eng|u 40125 Project Gutenberg PGUSA eng TxAuBib Hungerford, Edward. The Railroad Problem [Gutenberg] / by Edward Hungerford. Project Gutenberg, 2012. Project Gutenberg. Freely available. Electronic text. http://www.gutenberg.org/license Rights TXTLL