THIS publication consists of a stout adjustable cover to which is attached a pamphlet of 11 pages of explanatory notes, a folded sheet of strong graph paper, destined to receive the pedigree chart, ...
Eric J. G. Sijbrands, Rudi G. J. Westendorp, Joep C. Defesche, Paul H. E. M. de Meier, Augustinus H. M. Smelt, John J. P. Kastelein https://www.jstor.org/stable ...