APA (7th ed.) Citation

Berger, D. G. (1975). They all look alike. R and E Research Associates.

Chicago Style (17th ed.) Citation

Berger, David G. They All Look Alike. San Francisco: R and E Research Associates, 1975.

MLA (9th ed.) Citation

Berger, David G. They All Look Alike. R and E Research Associates, 1975.