APA (7 ম সংস্করণ) উদ্ধৃতি

(1973). Geologic sections, Jackson Purchase region, Kentucky, and adjacent areas. Washington, D C : Department of the Interior.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Geologic Sections, Jackson Purchase Region, Kentucky, and Adjacent Areas. Washington, D C : Department of the Interior, 1973.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Geologic Sections, Jackson Purchase Region, Kentucky, and Adjacent Areas. Washington, D C : Department of the Interior, 1973.