Kumar, G. W. W. a. R. Options for developing countries in mining development. Macmillan Press.
Style de citation Chicago (17e éd.)Kumar, Grantley W. Walrond and Raj. Options for Developing Countries in Mining Development. Macmillan Press.
Style de citation MLA (8e éd.)Kumar, Grantley W. Walrond and Raj. Options for Developing Countries in Mining Development. Macmillan Press.
Attention : ces citations peuvent ne pas être correctes à 100%.