Ledyard, J., & Watrous, S. D. (2011). John Ledyard's journey through Russia and Siberia, 1787-1788: The journal and selected letters. University of Wisconsin Press.
Chicagoスタイル(17版)引用形式Ledyard, John, , Stephen D. Watrous. John Ledyard's Journey Through Russia and Siberia, 1787-1788: The Journal and Selected Letters. Madison: University of Wisconsin Press, 2011.
MLA(9版)引用形式Ledyard, John, , Stephen D. Watrous. John Ledyard's Journey Through Russia and Siberia, 1787-1788: The Journal and Selected Letters. University of Wisconsin Press, 2011.
警告: この引用は必ずしも正確ではありません.