Cita APA (7th ed.)

Richter, M. (1970). Essays in theory and history: An approach to the social sciences. Harvard University Press.

Cita Chicago (17th ed.)

Richter, Melvin. Essays in Theory and History: An Approach to the Social Sciences. Cambridge, Mass: Harvard University Press, 1970.

Cita MLA (9th ed.)

Richter, Melvin. Essays in Theory and History: An Approach to the Social Sciences. Harvard University Press, 1970.