Gierbolini, Robert E. <br/><br/>
Soil survey of Mayaguez area of Western Puerto Rico  area de Mayaguez 
by Roberto E. Gierbolini. 
 - et al. Washington  U.S. Govt. Print. Off.  1975] 
 - ii, 296 p.  ill., maps., tables. 
<br/><br/> Cover title.  English and Spanish. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soils--Maps.--Mayaguez, P. R.