APA aipamena

Pearce,David W, & Siehert,Horst. (1984). Risk and the political economy of resource development. Mac Millan.

Chicago Style aipamena

Pearce,David W, and Siehert,Horst. Risk and the Political Economy of Resource Development. London: Mac Millan, 1984.

MLA aipamena

Pearce,David W, and Siehert,Horst. Risk and the Political Economy of Resource Development. Mac Millan, 1984.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.