Number of farms, by states and counties: 1920, 1910 and 1900. (U.S. Census bur.) 29p pa ’20
Agricultural cooperation
Farmers’ cooperative gins in Texas. H. M. Eliot. (Texas. Agricultural experiment station. Special circular) 23p pa ’20 Agricultural experiment station, College station, Brazos county, Texas
Fundamental principles of cooperation in agriculture. G. Harold Powell. (California. Agricultural experiment station. Circular 222) 24p pa ’20 University of California, Berkeley, Cal.
Agricultural education
Development of agricultural instruction in secondary schools. H. P. Barrows. (U.S. Education bur. Bul. 1919, no. 85) 108p pa ’20
Lessons in animal production for southern schools. E. H. Shinn. (U.S. Federal board for vocational education. Bul. 56) 136p pa ’20
Agricultural extension
Cooperative extension work in agriculture and home economics, 1918. (U.S. States relations service) 157p pa ’19
Bibliography