APA (7th ed.) Citation

Einstein, L., & Barker, E. (1946). Historical change. C.U.P.

Chicago Style (17th ed.) Citation

Einstein, Lewis, and Ernest Barker. Historical Change. Cambridge: C.U.P, 1946.

MLA (9th ed.) Citation

Einstein, Lewis, and Ernest Barker. Historical Change. C.U.P, 1946.

Warning: These citations may not always be 100% accurate.