Citazione Stile APA (7a Edizione)

Shumaker, D. M., & Heckel, R. V. (2007). Kids of character: A guide to promoting moral development. Praeger.

Citazione stile Chigago Style (17a edizione)

Shumaker, David M., e Robert V. Heckel. Kids of Character: A Guide to Promoting Moral Development. Westport, Conn: Praeger, 2007.

Citatione MLA (9a ed.)

Shumaker, David M., e Robert V. Heckel. Kids of Character: A Guide to Promoting Moral Development. Praeger, 2007.