Preiss S. Sherry. (1998). North Star. Advanced. Achievement Tests: Focus on Listening and Speaking. Longman, 1998.
Цитирование в стиле Чикаго (17-е изд.)Preiss S. Sherry. North Star. Advanced. Achievement Tests: Focus on Listening and Speaking. Longman, 1998, 1998.
Цитирование MLA (9-е изд.)Preiss S. Sherry. North Star. Advanced. Achievement Tests: Focus on Listening and Speaking. Longman, 1998, 1998.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.