Srinivasan, M. S.; Kennett, J. P. (1975): Paleoceanographically controlled ultrastructural variation in Neogloboquadrina pachyderma (Ehrenberg) at DSDP Site 284, South Pacific. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, Initial Reports of the Deep Sea Drilling Project, 30 (Wellington, New Zealand to Apra, Guam; April-June 1973), 709-721, georefid:1976-033343