L. Walsh

发表

R. R. Menard, J. Mccusker, R. Bushman, 1987 .

R. R. Menard, L. Walsh, 1974, Maryland historical magazine.

L. Walsh, 1989, The Journal of Economic History.

R. R. Menard, G. T. Sharrer, L. Walsh, 1993, Technology and Culture.