Rubber cultivation for Porto Rico.

Bibliographic Details
Main Author:	Cook, O. F. (Orator Fuller), 1867-1949
Format:	Government Document Book
Language:	English
Published:	Washington, D.C. : [U.S. Dept. of Agriculture, Division of Botany], 1900.
Series:	Circular (United States. Department of Agriculture) ; no. 28.
Subjects:	Rubber > Puerto Rico. Rubber plants > Puerto Rico.

Cushing: Dykes (Does not check out)