Schroeder, A. The Snowball: Warren Buffett and the Business of Life. Bloomsbury.
Cita Chicago (17th ed.)Schroeder, Alice. The Snowball: Warren Buffett and the Business of Life. London: Bloomsbury.
Cita MLA (8th ed.)Schroeder, Alice. The Snowball: Warren Buffett and the Business of Life. Bloomsbury.
Atenció: Aquestes cites poden no estar 100% correctes.