Chambers, W. L. (1967). Recreation and development potentials: In the Upper Peninsula of Michigan. Ann Arbor, MI: The University of Michigan Press.
Παραπομπή Chicago StyleChambers, Walter L. Recreation and Development Potentials: In the Upper Peninsula of Michigan. Ann Arbor, MI: The University of Michigan Press, 1967.
Παραπομπή MLAChambers, Walter L. Recreation and Development Potentials: In the Upper Peninsula of Michigan. Ann Arbor, MI: The University of Michigan Press, 1967.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.