[1]
Pérez R., J., Pal, S., Terrell, D.J., Urrutia F., J. y López M., M. 1979. Preliminary report on the analysis of some "in-house" geochemical reference samples from Mexico. Geofísica Internacional. 18, 2 (abr. 1979), 197–209. DOI:https://doi.org/10.22201/igeof.00167169p.1979.18.2.893.