-
By: Gile, P. L. (Philip Lindsey), - Carrero, J. O. (José Oriol),Edition:Publication info: Porto Rico Agricultural Experiment Station, 1918Volume: no.25Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects: Guano Organic wastes as fertilizer Puerto RicoBHL Collections:
-
By: Griffiths, A. B. (Arthur Bower),Edition:Publication info: London, Robert Sutton, 1908Volume:Series:Holding Institution: Cornell University LibrarySubjects: Fertilizers Fruit-culture Manures Organic wastes as fertilizer TreesBHL Collections: