The bat guanos of Porto Rico and their fertilizing value
By: by P.L. Gile and J.O. Carrero
Contributors: Carrero, J. O.  1890-
Series: Bulletin / Porto Rico Agricultural Experiment Station -- no. 25; Bulletin (Porto Rico Agricultural Experiment Station) -- no. 25.
Publisher: Porto Rico Agricultural Experiment Station
Published: 1918
Language: eng
Number of pages: 66
Subjects: Guano; Organic wastes as fertilizer
Notes: Includes bibliographical references.