Gaya APA

Orion, G, F. (1997). Pronouncing American English: Sounds, Stress, adn Intonation Secong Edition . United States of America: Heinle & Heinle Publishers.

Gaya MLA

Orion, Gertrude, F.. "Pronouncing American English: Sounds, Stress, adn Intonation Secong Edition". United States of America: Heinle & Heinle Publishers, 1997. Text.