Chicago: "Op. Cit.," Op. Cit. in Primitive Behavior: An Introduction to the Social Sciences, ed. Thomas, William I. (New York: McGraw-Hill Book Company, Inc., 1937), Original Sources, accessed September 7, 2024, http://originalsources.com/Document.aspx?DocID=Y35G8FVC9GJ14HE.
MLA: . "Op. Cit." Op. Cit., in Primitive Behavior: An Introduction to the Social Sciences, edited by Thomas, William I., New York, McGraw-Hill Book Company, Inc., 1937, Original Sources. 7 Sep. 2024. http://originalsources.com/Document.aspx?DocID=Y35G8FVC9GJ14HE.
Harvard: , 'Op. Cit.' in Op. Cit.. cited in 1937, Primitive Behavior: An Introduction to the Social Sciences, ed. , McGraw-Hill Book Company, Inc., New York. Original Sources, retrieved 7 September 2024, from http://originalsources.com/Document.aspx?DocID=Y35G8FVC9GJ14HE.