Mcmahon, G. Environmental Study of Artisanal, Small and Medium Mining in Bolivia, Chile and Peru. Washington: The World Bank, 1999 IX, 61 с, 0-8213-4428-5.
Mcmahon, G. Environmental Study of Artisanal, Small and Medium Mining in Bolivia, Chile and Peru. Washington: The World Bank, 1999 IX, 61 с, 0-8213-4428-5.
Mcmahon, G. (1999) Environmental Study of Artisanal, Small and Medium Mining in Bolivia, Chile and Peru, Washington: The World Bank IX, 61 с, 0-8213-4428-5.
Mcmahon, G. (1999). Environmental Study of Artisanal, Small and Medium Mining in Bolivia, Chile and Peru. Washington: The World Bank, IX, 61 с.
Mcmahon G. Environmental Study of Artisanal, Small and Medium Mining in Bolivia, Chile and Peru. Washington: The World Bank; 1999. p. IX, 61 с. ISBN: 0-8213-4428-5.