Peale, N. V. (1998). You can if you think you can. Vermilion.
Cita Chicago (17th ed.)Peale, Norman Vincent. You Can If You Think You Can. London: Vermilion, 1998.
Cita MLA (8th ed.)Peale, Norman Vincent. You Can If You Think You Can. Vermilion, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.