Evolutionary trends in Foraminifera : a collection of papers dedicated to I. M. van der Vlerk on the occasion of his 70th birthday, edited by G. H. R. von Koenigswald and others - Koenigswald, G. H. R. von (Gustav Heinrich Ralph), 1902-1982 (Amsterdam : Elsevier Publishing, 1963)
Includes bibliographies
Keywords: Vlerk, I. M. van der; Foraminifera, Fossil