Gaya APA

Branch, M, P. (2001). John Muirs last journey : south to the Amazon and east to Africa : unpublished journals and selected correspondence (-). Washington, D.C: Island Press.

Gaya MLA

Branch, Michael, P.. "John Muirs last journey : south to the Amazon and east to Africa : unpublished journals and selected correspondence". - Washington, D.C: Island Press, 2001. Text.