APA (7th ed.) Citation

Gadd, С. J., & Edwards, I. E. S. (1970). Prolegomena and Prehistory.

Chicago Style (17th ed.) Citation

Gadd, С. J., and I. E. S. Edwards. Prolegomena and Prehistory. Cambridge, 1970.

MLA (8th ed.) Citation

Gadd, С. J., and I. E. S. Edwards. Prolegomena and Prehistory. 1970.