Gerhard, P. (1993). A guide to the historical geography of New Spain (Rev. ed.). University of Oklahoma Press.
Cita Chicago Style (17a ed.)Gerhard, Peter. A Guide to the Historical Geography of New Spain. Rev. ed. Norman [etc.]: University of Oklahoma Press, 1993.
Cita MLA (9a ed.)Gerhard, Peter. A Guide to the Historical Geography of New Spain. Rev. ed. University of Oklahoma Press, 1993.
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