By Collazo Grau , Nelsonrafael.
[Puerto Rico : s.n. 2006 .
53 p. , "Ed. bilingüe"--On cover 22 cm..
1596082399 | 9781596082397

.
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.

By Reyes Zamora, José..
San Juan: Ediciones Puerto, 2011 .
288 p. 22 cm..
9781617900259

By Mercado Torres, Doris..
Moorpark, California Floricanto Press 2013 .
308 pages 23 centimeters.
9781494245993

.
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.