Evans, D. (1977). Mathematics: Friend or foen. Allen and Unwin.
Citación estilo ChicagoEvans, Dorothy. Mathematics: Friend or Foen. London: Allen and Unwin, 1977.
Cita MLAEvans, Dorothy. Mathematics: Friend or Foen. Allen and Unwin, 1977.
Warning: These citations may not always be 100% accurate.