Station bulletin (Minnesota, 1900)
Las emisiones del no.447-448 may, dec (1958); no.449-450 jun (1959); no.451 (1960); no.452-456 mar, apr, jun (1961); no.457,459-462 feb, mar, apr, jun, oct (1962); no.463-469 mar, jun (1963); no.471-474 may, jul (1964); no.475 (1965); no.476 dec (1964); no.477,480,478 may, jun (1965); no.481-482 (1966); no.483 apr (1967); no.484-485 sep (1966) fuerón Retirados de Servicio en el 2017, según Oficio SIBDI-49-2017
Keywords: ESTACIONES AGRICOLAS EXPERIMENTALES -- MINNESOTA (EE.UU.).