Ingle, James C., Jr. (1974): Oligocene to Holocene planktonic foraminiferal biofacies and paleoceanography of the California Current system at lat. 39 degrees N.. Geological Society of America (GSA), Boulder, CO, United States, In: Cordilleran Section, 70th Annual Meeting, 6 (3), 195, georefid:1974-020399