Grayson, K. L., Mitchell, N. J., Monks, J. M., Keall, S. N., Wilson, J. N., & Nelson, N. J. (2014). Sex Ratio Bias and Extinction Risk in an Isolated Population of Tuatara (Sphenodon punctatus). Public Library of Science.

Grayson, Kristine L., Nicola J. Mitchell, Joanne M. Monks, Susan N. Keall, Joanna N. Wilson, και Nicola J. Nelson. Sex Ratio Bias and Extinction Risk in an Isolated Population of Tuatara (Sphenodon Punctatus). Public Library of Science, 2014.

Grayson, Kristine L., et al. Sex Ratio Bias and Extinction Risk in an Isolated Population of Tuatara (Sphenodon Punctatus). Public Library of Science, 2014.