Shafer, R. J. (1980). A guide to historical method (3rd ed.). Dorsey.
Chicagoスタイル(17版)引用形式Shafer, Robert J. A Guide to Historical Method. 3rd ed. Ontario: Dorsey, 1980.
MLA(9版)引用形式Shafer, Robert J. A Guide to Historical Method. 3rd ed. Dorsey, 1980.
警告: この引用は必ずしも正確ではありません.