APA (7th ed.) Zitazioa

Vincent Peale, N. (2019). The power of positive thinking for young people. Better yourself books.

Chicago Style (17th ed.) Zitazioa

Vincent Peale, Norman. The Power of Positive Thinking for Young People. India: Better yourself books, 2019.

MLA (9th ed.) Zitazioa

Vincent Peale, Norman. The Power of Positive Thinking for Young People. Better yourself books, 2019.