Englert, P. D. (1991). Folder 55: Englert, P.A.J., J.F. Dempsey, W. Gaugler, W. Venuti, T.A. Cahill, and T.E. Gill. Geochemical Analysis Supporting Search for Ancient Monuments, 1991. Saint Louis University Libraries Digitization Center.
Chicago-viite (17. p.)Englert, P.A.; Dempsey. Folder 55: Englert, P.A.J., J.F. Dempsey, W. Gaugler, W. Venuti, T.A. Cahill, and T.E. Gill. Geochemical Analysis Supporting Search for Ancient Monuments, 1991. Saint Louis University Libraries Digitization Center, 1991.
MLA-viite (8. p.)Englert, P.A.; Dempsey. Folder 55: Englert, P.A.J., J.F. Dempsey, W. Gaugler, W. Venuti, T.A. Cahill, and T.E. Gill. Geochemical Analysis Supporting Search for Ancient Monuments, 1991. Saint Louis University Libraries Digitization Center, 1991.