APA (7th ed.) Citation

Hobday, D. K. (1969). Upper Carboniferous shorelines systems in northern Alabama. [publisher not identified].

Chicago Style (17th ed.) Citation

Hobday, David K. Upper Carboniferous Shorelines Systems in Northern Alabama. [Place of publication not identified]: [publisher not identified], 1969.

MLA (8th ed.) Citation

Hobday, David K. Upper Carboniferous Shorelines Systems in Northern Alabama. [publisher not identified], 1969.