Hendricks, G. (1972). Albert Bierstadt: 1830 - 1902 / Gordon Hendricks. Knoedler.
Cita Chicago (17th ed.)Hendricks, Gordon. Albert Bierstadt: 1830 - 1902 / Gordon Hendricks. New York: Knoedler, 1972.
Cita MLA (8th ed.)Hendricks, Gordon. Albert Bierstadt: 1830 - 1902 / Gordon Hendricks. Knoedler, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.