Hulbert, A. B. (1930). Undeveloped factors in the life of Marcus Whitman. n.p..
Cita Chicago Style (17a ed.)Hulbert, Archer Butler. Undeveloped Factors in the Life of Marcus Whitman. n.p.: n.p., 1930.
Cita MLA (8a ed.)Hulbert, Archer Butler. Undeveloped Factors in the Life of Marcus Whitman. n.p., 1930.
Precaución: Estas citas no son 100% exactas.