Joseph Ewan

• John Lyon, Nurseryman and Plant Hunter, and His Journal, 1799-1814
• Manual of the Flora of Northern Idaho /Carl Epling and Joe Ewan. ; V. 2
• Manual of the Flora of Northern Idaho /Carl Epling and Joe Ewan. ; V. 3
• Manual of the Flora of Northern Idaho /Carl Epling and Joe Ewan. ; V. 4
• William Bartram