P. J. Sugarman N. F. Sohl R.A. Parker H. F. Houghton R.A. Volkert Avery A. Drake Jr. R. C. Orndorff L.M. Bybell G.W. Andrews David Bukry O.S. Zapeecza G. N. Paulachok Lloyd Mullikin J. P. Owens 1999 application/pdf 10.3133/i2540B en Bedrock geologic map of central and southern New Jersey reports