Gaya APA

Covey, S., Curtis, S. (2009). The 7 Habits of Happy Kids: When I Grow Up, Habit 2 . New York: Simon & Schuster.

Gaya MLA

Covey, Sean., Curtis, Stacy. "The 7 Habits of Happy Kids: When I Grow Up, Habit 2". New York: Simon & Schuster, 2009. Text / Book.