Lungton, R. C. (1986). American topics: A reading-vocabulary text for speakers of English as a second language (2a. ed.). Prentice Hall Regents.
Цитирование в стиле Чикаго (17-е изд.)Lungton, Robert C. American Topics: A Reading-vocabulary Text for Speakers of English as a Second Language. 2a. ed. Englewood Cliffs: Prentice Hall Regents, 1986.
Цитирование MLA (9-е изд.)Lungton, Robert C. American Topics: A Reading-vocabulary Text for Speakers of English as a Second Language. 2a. ed. Prentice Hall Regents, 1986.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.