Watson, J. L. (1988). Symmetrical English 1 ... c5. Macmillan.
Citación estilo ChicagoWatson, John L. Symmetrical English 1 ... C5. New York: Macmillan, 1988.
Cita MLAWatson, John L. Symmetrical English 1 ... C5. Macmillan, 1988.
Warning: These citations may not always be 100% accurate.