Chicago:
Through the Dark Continent in Primitive Behavior: An Introduction to the Social Sciences, ed. Thomas, William I. (New York: McGraw-Hill Book Company, Inc., 1937), Original Sources, accessed July 6, 2025, http://www.originalsources.com/Document.aspx?DocID=YP9343JZ159HQ5K.
MLA:
. Through the Dark Continent, Vol. 2, in Primitive Behavior: An Introduction to the Social Sciences, edited by Thomas, William I., New York, McGraw-Hill Book Company, Inc., 1937, Original Sources. 6 Jul. 2025. http://www.originalsources.com/Document.aspx?DocID=YP9343JZ159HQ5K.
Harvard:
, Through the Dark Continent. cited in 1937, Primitive Behavior: An Introduction to the Social Sciences, ed. , McGraw-Hill Book Company, Inc., New York. Original Sources, retrieved 6 July 2025, from http://www.originalsources.com/Document.aspx?DocID=YP9343JZ159HQ5K.