APA (7th ed.) Citation

Mather, C. (1720). The greatest concern in the world. [publisher not identified].

Chicago Style (17th ed.) Citation

Mather, Cotton. The Greatest Concern in the World. [United States]: [publisher not identified], 1720.

MLA (9th ed.) Citation

Mather, Cotton. The Greatest Concern in the World. [publisher not identified], 1720.