Smith, A. H. (1972). The North American species of psathyrella. New York Botanical Garden.
Cita Chicago (17th ed.)Smith, Alexander Hanchett. The North American Species of Psathyrella. Bronx, N.Y.: New York Botanical Garden, 1972.
Cita MLA (8th ed.)Smith, Alexander Hanchett. The North American Species of Psathyrella. New York Botanical Garden, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.