Westrop, P.R., Olmsted, J.F., 1993. Bedrock Geology of the Au Sable Forks Quadrangle, Northeastern Adirondack Mountains, New York. New York State Museum and Science Service Map and Chart Series.

Westrop, P.R., Olmsted, J.F., 1993. The Willsboro-Lewis Wollastonite Ores, in: Petersen, E.U., Slack, J.F., Offield, T.W. (Eds.), Selected Mineral Deposits Of Vermont And The Adirondack Mountains, New York; I, Mineral Deposits Of The Adirondack Mountains; Ii, Besshi-Type Massive Sulfide Deposits Of The Vermont Copper Belt. Society of Economic Geologists, pp. 17-25.

Westrop, P.R., 1975. Relationship of Manganese-iron Oxides and Associated Heavy Metals to Grain Size in Stream Sediments. Journal of Geochemical Exploration 4, 251-263. doi:10.1016/0375-6742(75)90005-9