Sherman, C. L. (1956). Nature's wonders in full color. Hanover House.
Cita Chicago (17th ed.)Sherman, Charles L. Nature's Wonders in Full Color. Nueva York: Hanover House, 1956.
Cita MLA (9th ed.)Sherman, Charles L. Nature's Wonders in Full Color. Hanover House, 1956.
Atenció: Aquestes cites poden no estar 100% correctes.