@MISC{Bot_Eda_1981,
author = "Botero Arango, Gerardo - Álvarez, Jairo - Marulanda, N. - Linares, Enrique",
title = "Edad K/Ar del Stock de San Cristobal, Nariño",
year = 1981,
url = "https://repositorio.accefyn.org.co/handle/001/488",
}