Author	Downie, C., Williams, G.L. and Sarjeant, W.A.S.
Year	1961
Journal	Nature, v.192, no.4801, p.471.
Title	Classification of fossil microplankton.

Abstract Downie, C., Williams, G.L. and Sarjeant, W.A.S., 1961: Classification of fossil microplankton. Nature, v.192, no.4801, p.471.