"Alistair Cameron Crombie," Wikipedia, http://en.wikipedia.org/wiki/Alistair_Cameron_Crombie (accessed 09/05/2014) [unvetted]
Fox, Robert, "Eloge: Alistair Cameron Crombie, Isis, Vol. 88, No. 1 (Mar., 1997), pp. 183-186," JSTOR, http://www.jstor.org/stable/235887 (accessed 09/05/2014)