*"The Plurality of Index-Numbers", 1925, "EJ"*"The Element of Probability in Index-Numbers", 1925, "JRSS"*"The Revised Doctrine of Marginal Social Product", 1925, "EJ"*"Review of J.M.
* «The Plurality of Index-Numbers», 1925, "EJ"* «The Element of Probability in Index-Numbers», 1925, "JRSS"* «The Revised Doctrine of Marginal Social Product», 1925, "EJ"* «Review of J.M.