John W. Hayes. — Ancient Metal Axes and Other Tools in the Royal Ontario Museum. European and Mediterranean Types. With photographs by B. Boyle and others, 1991
Coffyn André. John W. Hayes. — Ancient Metal Axes and Other Tools in the Royal Ontario Museum. European and Mediterranean Types. With photographs by B. Boyle and others, 1991. In: Revue des Études Anciennes. Tome 94, 1992, n°1-2. Colloque de la société des professeurs d'histoire ancienne (Nantes-Angers 24-26 mai 1991) pp. 293-294
