Greenwood, E. W. (1974). Broad-leaved helleborine now present in Manitoulin District, Ontario. Zenodo.
Chicago Style (17th ed.) CitationGreenwood, Edward Warren. Broad-leaved Helleborine Now Present in Manitoulin District, Ontario. Zenodo, 1974.
MLA (9th ed.) CitationGreenwood, Edward Warren. Broad-leaved Helleborine Now Present in Manitoulin District, Ontario. Zenodo, 1974.
Warning: These citations may not always be 100% accurate.