APA ציטוט

Maryland Geological Survey. (1911). Lower Cretaceous: Maryland Geological Survey. Johns Hopkins Press.

Chicago Style (17th ed.) Citation

Maryland Geological Survey. Lower Cretaceous: Maryland Geological Survey. Baltimore: Johns Hopkins Press, 1911.

ציטוט MLA

Maryland Geological Survey. Lower Cretaceous: Maryland Geological Survey. Johns Hopkins Press, 1911.