Baer, U. J. (1955). Letters to an American farmer. National Catholic Rural Life Conference.
Chicagoスタイル(17版)引用形式Baer, Urban J. Letters to an American Farmer. Des Moines: National Catholic Rural Life Conference, 1955.
MLA(8版)引用形式Baer, Urban J. Letters to an American Farmer. National Catholic Rural Life Conference, 1955.
警告: この引用は必ずしも正確ではありません.