Citazione Stile APA (7a Edizione)

KING, C., & NANCY, S. (1989). Building skills for the TOEFL (test of english as atest foreign language.-- Ed.2. Thomas Nelson.

Citazione stile Chigago Style (17a edizione)

KING, Carol, e Stanley NANCY. Building Skills for the TOEFL (test of English as Atest Foreign Language.-- Ed.2. Hongkong: Thomas Nelson, 1989.

Citatione MLA (9a ed.)

KING, Carol, e Stanley NANCY. Building Skills for the TOEFL (test of English as Atest Foreign Language.-- Ed.2. Thomas Nelson, 1989.