MLA

Aron, Raymond, Richard Howard, and Helen Weaver. Main Currents In Sociological Thought : 1. Montesquieu, Comte, Marx, Tocqueville: the Sociologists and the Revolution of 1848. [London?]: Penguin Books, 1969.

APA

Aron, R., Howard, R., & Weaver, H. (1969). Main currents in sociological thought : 1. Montesquieu, Comte, Marx, Tocqueville: the sociologists and the Revolution of 1848. [London?]: Penguin Books.

Chicago

Aron, Raymond, Richard Howard, and Helen Weaver. Main Currents In Sociological Thought: 1. Montesquieu, Comte, Marx, Tocqueville: the Sociologists and the Revolution of 1848. [London?]: Penguin Books, 1969.