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 Country: Peru
 Country: Puerto Rico
 Country: United States
 Decade: 1920-1929
 Collection: United States Experiment Station Record
Experiment Station Record, Volume 41, July-December, 1919
Volume provides abstracts of agricultural experiments conducted during the year. Also includes statistics, convention reports, bulletins, bibliographies and listings for Spanish edition publications from the Porto Rico Station. Name and subject indexes start on page 901. digital.library.unt.edu/ark:/67531/metadc5013/