On "sick" soils of Porto Rico.

Bibliographic Details
Corporate Author:	Puerto Rico Agricultural Experiment Station
Format:	Government Document eBook
Language:	English
Published:	San Juan, Puerto Rico : Tip. Boletin Mercantil, 1910.
Series:	Porto Rico Agric. Experiment Station Circ. No. 12
Subjects:	Chemicals. Soils. Puerto Rico. Electronic books.
Online Access:	Connect to the full text of this electronic document

Description
Item Description:	[on causes and improvement of exhausted soils, with some data]. Record is based on bibliographic data in ProQuest U.S. Executive Branch Documents, 1910-1932. Reuse except for individual research requires license from ProQuest, LLC. Electronic resource.
Physical Description:	1 online resource (24 pages)
Format:	System requirements: PDF reader software.