APA-viite (7. p.)

Schuller, R. (1985). The be happy attitudes: Eight postive attitudes that can transform your life. Word books.

Chicago-viite (17. p.)

Schuller, Robert. The Be Happy Attitudes: Eight Postive Attitudes That Can Transform Your Life. Texas: Word books, 1985.

MLA-viite (9. p.)

Schuller, Robert. The Be Happy Attitudes: Eight Postive Attitudes That Can Transform Your Life. Word books, 1985.