APA (7th ed.) Citation
Grinnell, G. B. (2001). Trails of the pathfinders. Digital Scanning.
Chicago Style (17th ed.) Citation
Grinnell, George Bird. Trails of the Pathfinders. Scituate, Mass.: Digital Scanning, 2001.
MLA (9th ed.) Citation
Grinnell, George Bird. Trails of the Pathfinders. Digital Scanning, 2001.
Warning: These citations may not always be 100% accurate.