Acevido, Gilberto. <br/><br/>
Soil survey of Arecibo area of northern Puerto Rico / 
United States Department of Agriculture, Soil Conservation Service ; in cooperation with the College of Agricultural Sciences, University of Puerto Rico, Mayaguez Campus. 
 - Washington, D.C.:  Soil Conservation Service;  c1982. 
 - vii, 169 p., 49 p. of plates  ill., maps (1 col.)  30 cm. 
<br/><br/> Cover title.  "Issued March 1982"--P. iii. 
<br/><br/>Bibliography: p. 91. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soils--Maps.--Puerto Rico--Arecibo<br/>Soils--Maps.--Puerto Rico--Arecibo Area<br/>Soil surveys--Puerto Rico--Arecibo Area.