APA استشهاد

Howard, C. G., & Summers, R. S. (1965). Law its nature,functions and limits. Prentice Hall.

استشهاد بنمط شيكاغو

Howard, Charles G., و Robert S. Summers. Law Its Nature,functions and Limits. New Jersey: Prentice Hall, 1965.

MLA استشهاد

Howard, Charles G., و Robert S. Summers. Law Its Nature,functions and Limits. Prentice Hall, 1965.