APA (7th ed.) Citation

Blatt, I. B. (1979). A study of culture change in modern Puerto Rico. R & E Research Associates.

Chicago Style (17th ed.) Citation

Blatt, Irwin B. A Study of Culture Change in Modern Puerto Rico. Palo Alto, Calif.: R & E Research Associates, 1979.

MLA (8th ed.) Citation

Blatt, Irwin B. A Study of Culture Change in Modern Puerto Rico. R & E Research Associates, 1979.