Lowrie, J. A. (1929). Operating expenses in Ohio accredited hatcheries, year 1927. Bureau of Business Research, Ohio State University, co-operating with the Ohio Poultry Improvement Association.
Lua i Stíl Chicago (17ú heag.)Lowrie, Josephine A. Operating Expenses in Ohio Accredited Hatcheries, Year 1927. Columbus: Bureau of Business Research, Ohio State University, co-operating with the Ohio Poultry Improvement Association, 1929.
Lua MLA (8ú heag.)Lowrie, Josephine A. Operating Expenses in Ohio Accredited Hatcheries, Year 1927. Bureau of Business Research, Ohio State University, co-operating with the Ohio Poultry Improvement Association, 1929.
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