APA

National Education Association of the United States, Asociacion de Maestros de Puerto Rico, . (1979). Puerto Rico: tragedy in the schools. Washington: National Education Association.

Chicago

National Education Association of the United States, Asociacion de Maestros de Puerto Rico, . 1979. Puerto Rico: tragedy in the schools. Washington: National Education Association.

Harvard

National Education Association of the United States, Asociacion de Maestros de Puerto Rico, . (1979). Puerto Rico: tragedy in the schools. Washington: National Education Association.

MLA

National Education Association of the United States, Asociacion de Maestros de Puerto Rico, . Puerto Rico: tragedy in the schools. Washington: National Education Association. 1979.