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Prickly Pear as a Farm Crop; Volume no.124David 1867-1935 Griffiths, David Griffiths, United States Department of Agricult, United States Bureau of Plant IndustryHäftad329 kr
Spanish Almonds and Their Introduction Into America; Volume no.26David 1869-1954 Fairchild, David Fairchild, United States Bureau of Plant IndustryInbunden419 kr
Nomenclature of the PearW. H. (William Henry) Ragan, United States Bureau of Plant IndustryHäftad339 kr
Reseeding of Depleted Range and Native Pastures; Volume no.117David 1867-1935 Griffiths, David Griffiths, United States Department of Agricult, United States Bureau of Plant IndustryHäftad209 kr
Soil Survey Of The Colusa Area, CaliforniaUnited States Bureau of Plant Industry, Macy Harvey Lapham, United States Bureau of SoilsHäftad229 kr