Author	Margulis, L. and Schwartz, K.V., 1982: Five Kingdoms. An Illustrated Guide to the Phyla of Life on Earth. San Francisco, Freeman, xiv+338 p.
Year	1990
Journal	Boston, Jones and Bartlett, xli+914 p.
Title	Handbook of Protoctista

Abstract Margulis, L., Corliss, J.O., Melkonian, M., Chapman, D.J. and Mckhann, H.I.(editors), 1990: Handbook of Protoctista. Boston, Jones and Bartlett, xli+914 p.