Salmon, A., Shayler, D. J., & Shayler, M. D. (2005). Marswalk one: First steps on a new planet. Praxis Publishing Ltd..

Salmon, Andrew, David J. Shayler, and Michael D. Shayler. Marswalk One: First Steps on a New Planet. Chichester: Praxis Publishing Ltd., 2005.

Salmon, Andrew, et al. Marswalk One: First Steps on a New Planet. Praxis Publishing Ltd., 2005.