APA   Click to copy
Elwood Madden, M. E., Madden, A. S., & Rimstidt, J. D. (2009). How long was Meridiani Planum wet? Applying a jarosite stopwatch to determine the duration of aqueous diagenesis. Geology, 37, 635–638.

Chicago/Turabian   Click to copy
Elwood Madden, Megan E, Andrew S Madden, and J Donald Rimstidt. “How Long Was Meridiani Planum Wet? Applying a Jarosite Stopwatch to Determine the Duration of Aqueous Diagenesis.” Geology 37 (2009): 635–638.

MLA   Click to copy
Elwood Madden, Megan E., et al. “How Long Was Meridiani Planum Wet? Applying a Jarosite Stopwatch to Determine the Duration of Aqueous Diagenesis.” Geology, vol. 37, Geological Society of America, 2009, pp. 635–38.

@article{elwood2009a,
  title = {How long was Meridiani Planum wet? Applying a jarosite stopwatch to determine the duration of aqueous diagenesis},
  year = {2009},
  journal = {Geology},
  pages = {635--638},
  publisher = {Geological Society of America},
  volume = {37},
  author = {Elwood Madden, Megan E and Madden, Andrew S and Rimstidt, J Donald}
}