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Publisher
- Santa Barbara Museum of Natural History,294
- Historic Urban Plans,264
- Geological Survey of Canada,224
- Army Map Service, U.S. Army,182
- The Survey ;171
- U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Ocean Service, Coast Survey ;145
- U.S. Dept. of Commerce, NOAA, NOS, Coast Survey ;132
- Survey of Pakistan,125
- Geological Society of America,110
- [publisher not identified],110
- U.S. Geological Survey,106
- The Survey,96
- U.S. Geological Survey ;96
- New York University. Center for Urban Science and Progress81
- The Agency ;78
- Montana Bureau of Mines and Geology,70
- California Division of Mines and Geology,67
- Maine Geological Survey,66
- Dibblee Geological Foundation,62
- Ontario Geological Survey,57