Doff, A., & Jones, C. (2000). Language in use: Pre-intermediate: Self-study workbook with answer key (New edition.). Cambridge Univ. Press.
Цитирование в стиле Чикаго (17-е изд.)Doff, Adrian, и Christopher Jones. Language in Use: Pre-intermediate: Self-study Workbook with Answer Key. New edition. New York: Cambridge Univ. Press, 2000.
Цитирование MLA (8-е изд.)Doff, Adrian, и Christopher Jones. Language in Use: Pre-intermediate: Self-study Workbook with Answer Key. New edition. Cambridge Univ. Press, 2000.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.