Rassmann, K., Trillmich, F., & Tautz, D. (1997). Hybridization between the Galapagos
land and marine iguana (Conolophus subcristatus and Amblyrhynchus cristatus) on Plaza Sur. Journal
of Zoology, 242(4), 729-739. doi:10.1111/j.1469-7998.1997.tb05822.x.