Citazione Stile APA (7a Edizione)

Solórzano, H. S., & Leach Frazier, L. (1995). Introductory topics: Intermediate listening comprehension. Longman.

Citazione stile Chigago Style (17a edizione)

Solórzano, Helen Sophia, e Laurie Leach Frazier. Introductory Topics: Intermediate Listening Comprehension. Nueva York: Longman, 1995.

Citatione MLA (9a ed.)

Solórzano, Helen Sophia, e Laurie Leach Frazier. Introductory Topics: Intermediate Listening Comprehension. Longman, 1995.