Rapp, George and Hill, Christopher L.. "Preface to the Second Edition". Geoarchaeology, New Haven: Yale University Press, 1973, pp. xi-xii. https://doi.org/10.12987/9780300157345-001
Rapp, George and Hill, Christopher L.. "Preface to the Second Edition" In Geoarchaeology, xi-xii. New Haven: Yale University Press, 1973. https://doi.org/10.12987/9780300157345-001