Hague A. Arnold. (1892). The Geology of the Eureka district, Nevada with an atlas. Washington, Governmext Printing Office, 1892.
Citazione stile Chigago Style (17a edizione)Hague A. Arnold. The Geology of the Eureka District, Nevada with an Atlas. Washington, Governmext Printing Office, 1892, 1892.
Citatione MLA (9a ed.)Hague A. Arnold. The Geology of the Eureka District, Nevada with an Atlas. Washington, Governmext Printing Office, 1892, 1892.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.