APA (7th ed.) Citation

Alpert, G. P., Sullivan, P. S., & Dunham, R. G. (1987). Attitude Structures of Different Ethnic and Age Groups Concerning Police.

Chicago Style (17th ed.) Citation

Alpert, Geoffrey P., Peggy S. Sullivan, and Roger G. Dunham. Attitude Structures of Different Ethnic and Age Groups Concerning Police. 1987.

MLA (9th ed.) Citation

Alpert, Geoffrey P., et al. Attitude Structures of Different Ethnic and Age Groups Concerning Police. 1987.