APA (7th ed.) Citation

Gray, J. C. (1900). Central Africa. [publisher not identified].

Chicago Style (17th ed.) Citation

Gray, James Comper. Central Africa. [London]: [publisher not identified], 1900.

MLA (9th ed.) Citation

Gray, James Comper. Central Africa. [publisher not identified], 1900.

Warning: These citations may not always be 100% accurate.