Citation: Mekkes, J. P. A. "Methodology and practice," in The idea of a Christian philosophy: essays in honour of D.H.Th. Vollenhoven, edited by K.A. Bril, Hendrik Hart and Jacob Klapwijk. Toronto, Ont.: Wedge Publishing Foundation, 1973, pages 77-83. (ICS Library: B 73 .I44 1973)