APA-ийн эшлэл(7 дахь хэвлэлт)

Comfort, M. H. (1967). Danger on the trail: (Original title: Prairie schooners west). Scholastic Book Services.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Comfort, Mildred Houghton. Danger on the Trail: (Original Title: Prairie Schooners West). New York: Scholastic Book Services, 1967.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Comfort, Mildred Houghton. Danger on the Trail: (Original Title: Prairie Schooners West). Scholastic Book Services, 1967.