Tohutoro APA (7th ed.)

Gallardo, A. (1984). The standardization of american english. Universidad de Concepción.

Tohutoru Kātū Chicago (17th ed.)

Gallardo, Andrés. The Standardization of American English. Concepción: Universidad de Concepción, 1984.

Tohutoro MLA (9th ed.)

Gallardo, Andrés. The Standardization of American English. Universidad de Concepción, 1984.