Gaya APA

Branch, M, P. (2001). John Muir's last journey : south to the Amazon and east to Africa : un published journals and selected correspondence.-- . America: Island Press.

Gaya MLA

Branch, Michael, P.. "John Muir's last journey : south to the Amazon and east to Africa : un published journals and selected correspondence.--". America: Island Press, 2001. Buku.