APA (7th ed.) Citation

Horadam, A. F., Dunkley, M. E., & Stewart, I. W. (1970). New horizons in mathematics. Angus and Robertson.

Chicago Style (17th ed.) Citation

Horadam, A. F., M. E. Dunkley, and I. W. Stewart. New Horizons in Mathematics. Sydney: Angus and Robertson, 1970.

MLA (9th ed.) Citation

Horadam, A. F., et al. New Horizons in Mathematics. Angus and Robertson, 1970.