Challoner Jack. Rockes, minerals and the changing earth. Southwater.
Čikaški stil citiranja (17. izdanje)Challoner Jack. Rockes, Minerals and the Changing Earth. Southwater.
MLA način citiranja (9. izdanje)Challoner Jack. Rockes, Minerals and the Changing Earth. Southwater.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.