APA (7th ed.) Citation

Niger Valley Exploring Party & Delany, M. R. (1861). Official report of the Niger Valley Exploring Party. T. Hamilton; [etc., etc.].

Chicago Style (17th ed.) Citation

Niger Valley Exploring Party and Martin Robison Delany. Official Report of the Niger Valley Exploring Party. New York: T. Hamilton; [etc., etc.], 1861.

MLA (9th ed.) Citation

Niger Valley Exploring Party and Martin Robison Delany. Official Report of the Niger Valley Exploring Party. T. Hamilton; [etc., etc.], 1861.