Cita APA (7th ed.)
Kirkby, M. (1972). The physical environment of the Nochixtlán Valley, Oaxaca. Vanderbilt University.
Cita Chicago (17th ed.)
Kirkby, Michael. The Physical Environment of the Nochixtlán Valley, Oaxaca. Nashville, Tennessee: Vanderbilt University, 1972.
Cita MLA (9th ed.)
Kirkby, Michael. The Physical Environment of the Nochixtlán Valley, Oaxaca. Vanderbilt University, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.