Halbert, M. G., & Worley, O. K. (1941). John raises chickens. published by Bureau of School Service, University of Kentucky, as a part of an experiment in applied economics made possible by a grant from the Alfred P. Sloan Foundation.
Παραπομπή σε μορφή Chicago (17η εκδ.)Halbert, Marie Goodwin, και Opaline King Worley. John Raises Chickens. Lexington, Ky.: published by Bureau of School Service, University of Kentucky, as a part of an experiment in applied economics made possible by a grant from the Alfred P. Sloan Foundation, 1941.
Παραπομπή σε μορφή MLA (8th εκδ.)Halbert, Marie Goodwin, και Opaline King Worley. John Raises Chickens. published by Bureau of School Service, University of Kentucky, as a part of an experiment in applied economics made possible by a grant from the Alfred P. Sloan Foundation, 1941.