Murphy R. (2013). Essential Grammar in Use: A self-study reference and practice book for elementary students of English (4.).
Цитирование в стиле Чикаго (17-е изд.)Murphy R. Essential Grammar in Use: A Self-study Reference and Practice Book for Elementary Students of English. 4. Singapore, 2013.
Цитирование MLA (8-е изд.)Murphy R. Essential Grammar in Use: A Self-study Reference and Practice Book for Elementary Students of English. 4. 2013.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.