eng Smith, Helen L. INTERIM REPORT on COST OF MILK PRODUCTION WINTER 1953-54. http://ageconsearch.umn.edu/record/271880/files/edinburgh057.pdf http://ageconsearch.umn.edu/record/271880/files/edinburgh057.pdf?subformat=pdfa 2018-04-20T13:55:03Z http://ageconsearch.umn.edu/record/271880