Verbatim text: Copeland, H. F. 1939. The structure of Monotropsis and the classification of the Monotropoideae. Madroño 5: 105–119.
Author: Copeland, H.F.
Year: 1939
Title: The structure of Monotropsis and the classification of the Monotropoideae
Journal: Madroño
Volume: 5
Pages: 105–119