00560cam a22002057 4500 ltf91022316 DLC 20260227111552.0 910221s1921 cl 000 0 spa ltf91022316 DLC DLC DLC s-cl--- KHF3969 .O785 1921 Ortúzar R., Julio. Política y legislación petrolífera. Santiago de Chile, 1921. 92 p. ; 25 cm. Petroleum Law and legislation Chile. Oil and gas leases Chile. 37490 37490