By Torres-Sierra, Heriberto..
[Reston, Va.] The Survey 1998 .
1 map , Relief shown by contours. | Shipping list no.: 99-0130-P. | Includes 6 inset photos. | Data sheet includes text, bibliography, 4 ancillary maps, 3 graphs, and 1 table. 89 x 57 cm..

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maps , map photoinspected 19_, no major culture or drainage changes observed | Revisions sown in purple compiled from aerial photographs | Includes quadrangel location map | Relief shown by contours and spot heights 69 x 56cm.

San Juan, PR El Comité 1987 .
[4], 66, [10] p. 28 cm..

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maps , map photoinspected 19_, no major culture or drainage changes observed | Revisions sown in purple compiled from aerial photographs | Includes quadrangel location map | Relief shown by contours and spot heights 69 x 56cm.