International Geographical Union
Avril Madrell, "Marion Isabel Newbigin (1869–1968)" in: Hayden Lorimer and Charles W. J. Withers, eds., (on behalf of Commission on the History of Geographical Thought of the International Geographical Union and the International Union of the History and Philosophy of Science), "Geographers: Bibliographical Studies", Volume 28, London: Continuum UK, 2009, pp. 119–130.