Bajpai, A. C., Calus, I. M., Fairley, J. A., Calus, I., & Fairley, J. A. (1975). Numerical methods for engineers and scientists: A students' course book. London: Taylor & Francis.

Bajpai, A. C., I. M. Calus, J. A. Fairley, I.M Calus, and James Alexander Fairley. Numerical Methods for Engineers and Scientists: A Students' Course Book. London: Taylor & Francis, 1975.

Bajpai, A. C., et al. Numerical Methods for Engineers and Scientists: A Students' Course Book. London: Taylor & Francis, 1975.