APA (7th ed.) Citation

(1912). Systematic investigations in phanerogams, ferns, and mosses. GPO.

Chicago Style (17th ed.) Citation

Systematic Investigations in Phanerogams, Ferns, and Mosses. [Washington]: GPO, 1912.

MLA (9th ed.) Citation

Systematic Investigations in Phanerogams, Ferns, and Mosses. GPO, 1912.

Warning: These citations may not always be 100% accurate.