21. 6431 3 S, Vietnam (AMS L8020), 1:25000 Raster The University of Texas at Austin Public content Scale: 1:25000; Other Descriptive Notes about Map Series:.
22. 6530 1 N, Vietnam (AMS L8020), 1:25000 Raster The University of Texas at Austin Public content Scale: 1:25000; Other Descriptive Notes about Map Series:.
23. 6530 1 S, Vietnam (AMS L8020), 1:25000 Raster The University of Texas at Austin Public content Scale: 1:25000; Other Descriptive Notes about Map Series:.
24. 6530 2 N, Vietnam (AMS L8020), 1:25000 Raster The University of Texas at Austin Public content Scale: 1:25000; Other Descriptive Notes about Map Series:.
25. 6530 3 N, Vietnam (AMS L8020), 1:25000 Raster The University of Texas at Austin Public content Scale: 1:25000; Other Descriptive Notes about Map Series:.
26. 6530 3 S, Vietnam (AMS L8020), 1:25000 Raster The University of Texas at Austin Public content Scale: 1:25000; Other Descriptive Notes about Map Series:.
27. 6530 4 N, Vietnam (AMS L8020), 1:25000 Raster The University of Texas at Austin Public content Scale: 1:25000; Other Descriptive Notes about Map Series:.
28. 6739 4 N, Vietnam (AMS L8020), 1:25000 Raster The University of Texas at Austin Public content Scale: 1:25000; Other Descriptive Notes about Map Series:.
29. 6739 4 S, Vietnam (AMS L8020), 1:25000 Raster The University of Texas at Austin Public content Scale: 1:25000; Other Descriptive Notes about Map Series:.
30. 6836 2 S, Vietnam (AMS L8020), 1:25000 Raster The University of Texas at Austin Public content Scale: 1:25000; Other Descriptive Notes about Map Series:.