Coe, R. T. (1977). Sacred circles: Two thousand years of North American Indian art / catalogue by Ralph T. Coe.
Citazione stile Chigago Style (17a edizione)Coe, Ralph T. Sacred Circles: Two Thousand Years of North American Indian Art / Catalogue by Ralph T. Coe. London, 1977.
Citatione MLA (8a ed.)Coe, Ralph T. Sacred Circles: Two Thousand Years of North American Indian Art / Catalogue by Ralph T. Coe. 1977.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.