Cita APA (7a ed.)

Ballard, E. G. (1971). Philosophy at the Crossroads. Louisiana State University Press.

Cita Chicago Style (17a ed.)

Ballard, Edward G. Philosophy at the Crossroads. Baton Rouge: Louisiana State University Press, 1971.

Cita MLA (8a ed.)

Ballard, Edward G. Philosophy at the Crossroads. Louisiana State University Press, 1971.