Cita APA

Ripley, J. A. (1969). The elements and structure of the physical sciences (2a. ed.). New York: Willey.

Citación estilo Chicago

Ripley, Julien A. The Elements and Structure of the Physical Sciences. 2a. ed. New York: Willey, 1969.

Cita MLA

Ripley, Julien A. The Elements and Structure of the Physical Sciences. 2a. ed. New York: Willey, 1969.