%&LaTeX
\documentclass{article}

\usepackage[latin1]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{textcomp}

\begin{document}

\begin{thebibliography}{1}

\bibitem{Hildebrand1998} Hildebrand, A. R., Pilkington, M., Halpenny, J., Cooper, R., Connors, M., Ortiz Aleman, C., Chavez, R.E., Urrutia Fucugauchi, J., Graniel Castro, E., Camara Zi, A., \& Buffler, R.T. nd, M. Pilkington, J. Halpenny, R. Cooper, M. Connors, C. Ortiz Aleman, R.E. Chavez, J. Urrutia Fucugauchi, E. Graniel Castro, A. Camara Zi, \& R.T. Buffler. (1998). Mapping Chicxulub Crater Structure with Overlapping Gravity and Seismic Surveys.

\end{thebibliography}

\end{document}

