APA (7th ed.) Citation

Roberts, G. B., & Otto, J. H. (1989). Ancestors of American presidents (Preliminary ed.). Published in cooperation with the New England Historic Genealogical Society, Boston, Massachusetts by C. Boyer, 3rd.

Chicago Style (17th ed.) Citation

Roberts, Gary Boyd, and Julie Helen Otto. Ancestors of American Presidents. Preliminary ed. Santa Clarita, Calif.: Published in cooperation with the New England Historic Genealogical Society, Boston, Massachusetts by C. Boyer, 3rd, 1989.

MLA (9th ed.) Citation

Roberts, Gary Boyd, and Julie Helen Otto. Ancestors of American Presidents. Preliminary ed. Published in cooperation with the New England Historic Genealogical Society, Boston, Massachusetts by C. Boyer, 3rd, 1989.