APA

Lesquereux L., Knowlton F. H., . (1891). The Flora of the Dakota group, a posthumous work. Washington: Governmext Printing Office.

Chicago

Lesquereux L, Knowlton F H, . 1891. The Flora of the Dakota group, a posthumous work. Washington: Governmext Printing Office.

Harvard

Lesquereux L., Knowlton F. H., . (1891). The Flora of the Dakota group, a posthumous work. Washington: Governmext Printing Office.

MLA

Lesquereux L, Knowlton F H, . The Flora of the Dakota group, a posthumous work. Washington: Governmext Printing Office. 1891.