APA

Elvander P. e., Wells E. F., . (1984). The taxonomy of Saxifraga (Saxifragaceae) section Boraphila subsection Integrifoliae in western North America. A revision of the genus Heuchera (Saxifragaceae) in eastern North America. Michigan: The American Society of Plant Taxonomists.

Chicago

Elvander Patrick e, Wells Elizabeth Fortson, . 1984. The taxonomy of Saxifraga (Saxifragaceae) section Boraphila subsection Integrifoliae in western North America. A revision of the genus Heuchera (Saxifragaceae) in eastern North America. Michigan: The American Society of Plant Taxonomists.

Harvard

Elvander P. e., Wells E. F., . (1984). The taxonomy of Saxifraga (Saxifragaceae) section Boraphila subsection Integrifoliae in western North America. A revision of the genus Heuchera (Saxifragaceae) in eastern North America. Michigan: The American Society of Plant Taxonomists.

MLA

Elvander Patrick e, Wells Elizabeth Fortson, . The taxonomy of Saxifraga (Saxifragaceae) section Boraphila subsection Integrifoliae in western North America. A revision of the genus Heuchera (Saxifragaceae) in eastern North America. Michigan: The American Society of Plant Taxonomists. 1984.