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Yeh, P. T. (Pao-Tai),1920-cartographer.
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1954
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1. Drainage map, White County, Indiana: prepared from 1938 AAA aerial photographs
1954. Yeh, P. T. (Pao-Tai),1920-cartographer. Blue line print. 'Prepared under the supervision of: P.T. Yeh.' Scale approximately 1:63,360; Polyconic projection By Joint Highway Research Projec...