Lawton, P., & Bishop, M. (1977). Living philosophy. Canfield Press.
Cita Chicago Style (17a ed.)Lawton, Philip, y Marie-Louise Bishop. Living Philosophy. San Francisco: Canfield Press, 1977.
Cita MLA (8a ed.)Lawton, Philip, y Marie-Louise Bishop. Living Philosophy. Canfield Press, 1977.
Precaución: Estas citas no son 100% exactas.