Head and Wrenn, 1992
From dinoflaj2
Head, M.J. and Wrenn, J.H., 1992: A forum on Neogene and Quaternary dinoflagellate cysts. In Head, M.J. and Wrenn, J.H. (editors), Neogene and Quaternary Dinoflagellate Cysts and Acritarchs, p.1-31; American Association of Stratigraphic Palynologists Foundation, Dallas, U.S.A.
