Cobban, W., & Kennedy, W. (1994). Upper Cretaceous ammonites from the Coon Creek Tongue of the Ripley Formation at its type locality in McNairy County, Tennessee.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিCobban, W., এবং W. Kennedy. Upper Cretaceous Ammonites from the Coon Creek Tongue of the Ripley Formation at Its Type Locality in McNairy County, Tennessee. 1994.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিCobban, W., এবং W. Kennedy. Upper Cretaceous Ammonites from the Coon Creek Tongue of the Ripley Formation at Its Type Locality in McNairy County, Tennessee. 1994.
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