Comfort, M. H. (1967). Danger on the trail: (Original title: Prairie schooners west). Scholastic Book Services.
Chicagoスタイル(17版)引用形式Comfort, Mildred Houghton. Danger on the Trail: (Original Title: Prairie Schooners West). New York: Scholastic Book Services, 1967.
MLA(9版)引用形式Comfort, Mildred Houghton. Danger on the Trail: (Original Title: Prairie Schooners West). Scholastic Book Services, 1967.
警告: この引用は必ずしも正確ではありません.