APA (7th ed.) Citation

Grivet, P., Septier, A., & Hawkes, P. W. (1965). Electron optics. Penguin Press.

Chicago Style (17th ed.) Citation

Grivet, P., A. Septier, and P. W. Hawkes. Electron Optics. Oxford: Penguin Press, 1965.

MLA (9th ed.) Citation

Grivet, P., et al. Electron Optics. Penguin Press, 1965.