APA

Krouse H., University of Calgary, World Petroleum Congress (10th : 1979 sept. 9-14 : Bucharest) & University of Calgary.Stable isotope geochemistry of non hydrocarbon constituents of natural gas. : .

Chicago

Krouse H.R, University of Calgary, World Petroleum Congress (10th : 1979 sept. 9-14 : Bucharest) and University of Calgary.Stable isotope geochemistry of non hydrocarbon constituents of natural gas. : .

Harvard

Krouse H., University of Calgary, World Petroleum Congress (10th : 1979 sept. 9-14 : Bucharest) and University of Calgary.Stable isotope geochemistry of non hydrocarbon constituents of natural gas. : .

MLA

Krouse H.R, University of Calgary, World Petroleum Congress (10th : 1979 sept. 9-14 : Bucharest) and University of Calgary.: . .