Cita APA (7a ed.)
Kirkby, M. (1972). The physical environment of the Nochixtlán Valley, Oaxaca. Vanderbilt University.
Cita Chicago Style (17a ed.)
Kirkby, Michael. The Physical Environment of the Nochixtlán Valley, Oaxaca. Nashville, Tennessee: Vanderbilt University, 1972.
Cita MLA (9a ed.)
Kirkby, Michael. The Physical Environment of the Nochixtlán Valley, Oaxaca. Vanderbilt University, 1972.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.