Cita APA (7a ed.)

Backman, N. E. (1980). Intonation problems of eight Spanish-speaking adults learning English. University Microfilms International.

Cita Chicago Style (17a ed.)

Backman, Nancy Ellen. Intonation Problems of Eight Spanish-speaking Adults Learning English. Ann Arbor: University Microfilms International, 1980.

Cita MLA (9a ed.)

Backman, Nancy Ellen. Intonation Problems of Eight Spanish-speaking Adults Learning English. University Microfilms International, 1980.