Hazen, T. E. (1901). The Ulothricaceae and Chaetophoraceae of the United States. The Club.
Cita Chicago (17th ed.)Hazen, Tracy Elliot. The Ulothricaceae and Chaetophoraceae of the United States. New York: The Club, 1901.
Cita MLA (9th ed.)Hazen, Tracy Elliot. The Ulothricaceae and Chaetophoraceae of the United States. The Club, 1901.
Atenció: Aquestes cites poden no estar 100% correctes.