Bukry, David (1974): Phytoplankton stratigraphy, offshore East Africa, Deep Sea Drilling Project Leg 25. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, In: Initial Reports of the Deep Sea Drilling Project covering Leg 25 of the cruises of the drilling vessel Glomar Challenger, Port Louis, Mauritius to Durban, South Africa, June-August 1972, 25, 635-646, georefid:1974-027974