OPID de la obra. OPID-W-01KXYSQDS1E22ZEQ16EFG8DQ21-OVerificar. codal.cc/o/OPID-W-01KXYSQDS1E22ZEQ16EFG8DQ21-OInformar de erratas. codal.cc/nydus/imperialism-a-study/issues/new