Welsh Rick
Обновлено: 24-09-2010
Публикации на портале:
Статьи
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Hubbell B.J., Rick Welsh An Examination of Trends in Geographic
Concentration in U.S. Hog Production,
1974–96
// Journal of Agricultural and Applied Economics.
2004.
Vol. 30.
No. 2.
P. 285-299.