Citazione Stile APA (7a Edizione)

Walrond, G. W. (1986). Options for developing countries in mining development. Macmillan.

Citazione stile Chigago Style (17a edizione)

Walrond, Grantley W. Options for Developing Countries in Mining Development. Houndmills, Basingstoke: Macmillan, 1986.

Citatione MLA (9a ed.)

Walrond, Grantley W. Options for Developing Countries in Mining Development. Macmillan, 1986.