Clark, A.H., 1993, Are outsize porphyry copper deposits either anatomically or environmentally distinctive?, in Whiting, B.H., Hodgson, C.J., and Mason, R., eds., Giant ore deposits: Society of Economic Geologists Special Publication 2, p. 213283.
Davies, C.R., and Williams, P.J., 2005, The El Galeno and Michiquillay porphyry Cu-Au-Mo depositsGeological descriptions and comparison of Miocene porphyry systems in the Cajamarca district, northern Peru: Mineralium Deposita, v. 40, p. 598616. (Also available at http://dx.doi.org/10.1007/s00126-005-0026-6.)
Hart, L.H., 1991, Who is the true discoverer of the Michiquillay porphyry copper deposit, in Hollister, V.F., ed., Porphyry copper, molybdenum, and gold deposits, volcanogenic deposits (massive sulfide), and deposits in layered rockCase histories of mineral discoveries: Littleton, Colorado, Society of Mining, Metallurgy, and Exploration, Inc., v. 3, p. 3334.
Hollister, V.F., and Sirvas, E.B., 1974, The Michiquillay porphyry copper deposit: Mineralium Deposita, v. 9, p. 261269. (Also available at http://dx.doi.org/10.1007%2FBF00204000.)
Long, K.R., 1995, Production and reserves of Cordilleran (Alaska to Chile) porphyry copper deposits, in Pierce, F.W., and Bolm, J.G., eds., Porphyry copper deposits of the American Cordillera: Tucson, Arizona Geological Society Digest 20, p. 3568.
Noble, D.C., Vidal, C.E., Perelló, J., and Rodríguez, O.P., 2004, Space-time relationships of some porphyry Cu-Au, epithermal Au, and other magmatic-related mineral deposits in northern Peru, in Sillitoe, R.H., Perelló, J., Vidal, C., eds., Andean metallogenyNew discoveries, concepts and updates: Society of Economic Geologists Special Publication 11, p. 313318.
Sillitoe, R.H., 1988, Epochs of intrusion-related copper mineralization in the Andes: Journal of South American Earth Sciences, v. 1, no. 1, p. 89108. (Also available at http://dx.doi.org/10.1016/0895-9811(88)90018-1.)Singer, D.A., Berger, V.I., and Moring, B.C., 2008, Porphyry copper deposits of the worldDatabase and grade and tonnage models, 2008: U.S. Geological Survey Open-File Report 2008-1155,  p. and digital data, accessed December 31, 2013, at http://pubs.usgs.gov/of/2008/1155/.