Forestry and erosion in Haiti and Puerto Rico 
by C. Swabey 
 - Kingston  Government Printer  1939 
 - 10 pages  photographs  25 cm 
 - Bulletin no. 21 (new series) .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Forests and forestry--Haiti.<br/>Forests and forestry--Puerto Rico.<br/>Erosion--Haiti.<br/>Erosion--Puerto Rico.<br/>Erosion<br/>Forests and forestry
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Haiti<br/>Puerto Rico
<br/><br/><label>LC Class. No.: </label>SD140  / .J33 1939