Olsson, I. (1970). Radiocarbon variations and absolute chronology. Wiley Interscience division.
Dyfyniad Arddull ChicagoOlsson, Ingrid. Radiocarbon Variations and Absolute Chronology. London: Wiley Interscience division, 1970.
Dyfyniad MLAOlsson, Ingrid. Radiocarbon Variations and Absolute Chronology. Wiley Interscience division, 1970.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.