Цитирование APA (7-е изд.)
Schuller, R. (1985). The be happy attitudes: Eight postive attitudes that can transform your life. Word books.
Цитирование в стиле Чикаго (17-е изд.)
Schuller, Robert. The Be Happy Attitudes: Eight Postive Attitudes That Can Transform Your Life. Texas: Word books, 1985.
Цитирование MLA (9-е изд.)
Schuller, Robert. The Be Happy Attitudes: Eight Postive Attitudes That Can Transform Your Life. Word books, 1985.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.