APA

Hanson A. D., Ritts B. D. & Ritts B. D.Upper Oligocene lacustrine source rocks and petroleum systems of the northern Qaidam basin, northwest China. : .

Chicago

Hanson Andrew D, Ritts Bradley D and Ritts Bradley D.Upper Oligocene lacustrine source rocks and petroleum systems of the northern Qaidam basin, northwest China. : .

Harvard

Hanson A. D., Ritts B. D. and Ritts B. D.Upper Oligocene lacustrine source rocks and petroleum systems of the northern Qaidam basin, northwest China. : .

MLA

Hanson Andrew D, Ritts Bradley D and Ritts Bradley D.: . .