Piperno, D. R., & Flannery, K. V. (2001). The earliest archaeological maize (Zea mays L.) from highland Mexico: New accelerator mass spectrometry dates and their implications. Proc Natl Acad Sci U S A.
Citação norma ChicagoPiperno, D. R., and K. V. Flannery. "The Earliest Archaeological Maize (Zea Mays L.) From Highland Mexico: New Accelerator Mass Spectrometry Dates and Their Implications." Proc Natl Acad Sci U S A 2001.
Citação norma MLAPiperno, D. R., and K. V. Flannery. "The Earliest Archaeological Maize (Zea Mays L.) From Highland Mexico: New Accelerator Mass Spectrometry Dates and Their Implications." Proc Natl Acad Sci U S A 2001.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.