Título: Circular / Mención de resp.: University of Illinois, College of Agriculture, Extension Service in Agriculture and Home Economics. Frecuencia actual: Editor Comercial : The Service Ciudad : [Urbana, Ill.] Continuación de : Circular (University of Illinois (Urbana-Champaign campus). Agricultural Experiment Station) Continuado por : Circular (University of Illinois (Urbana-Champaign campus). Cooperative Extension Service) Links: https://www.ideals.illinois.edu/handle/2142/28317/browse?rpp=20&sort%5Fby=-1&type=series&offset=0&etal=-1&order=ASC Registro Catalográfico