Amstrup, N. 1987. Johs. Nielsen, 1864 - Da Europa gik af lave. Odense University Studies in History Social Sciences, vol. 102, Odense Universitetsforlag, 1987, 439 s., 240,00 kr. (eksklusive moms). Politica. 19, 4 (jan. 1987), 516. DOI:https://doi.org/10.7146/politica.v19i4.68873.