Free books online
Woodcraft and Camping by "Nessmuk"
http://www.gutenberg.org/files/34607/34607-h/34607-h.htm
Camping and Woodcraft by Horace Kephart
https://archive.org/details/campingwoodcraft00kephrich
Wildwood Wisdom by Ellsworth Jaeger
http://books.google.com.pr/books?id=jE3SMChsaFkC&printsec=frontcover&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false