The red clay soil of Porto Rico
By: by P.L. Gile and C.N. Ageton
Contributors: Ageton, Charles Norman, 1883-1928
Series: Bulletin / Porto Rico Agricultural Experiment Station -- no. 14; Bulletin (Porto Rico Agricultural Experiment Station) -- no. 14.
Publisher: Porto Rico Agricultural Experiment Station
Published: 1914
Language: eng
Number of pages: 24
Subjects: Soils; Terra rossa
Notes: "Under the supervision of Office of Experiment Stations, U.S. Department of Agriculture."