Цитирование APA (7-е изд.)

Hover, D. Think twice. Communication activities for beginner to intermediate students.

Цитирование в стиле Чикаго (17-е изд.)

Hover, David. Think Twice. Communication Activities for Beginner to Intermediate Students.

Цитирование MLA (8-е изд.)

Hover, David. Think Twice. Communication Activities for Beginner to Intermediate Students.

Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.