Bayas, J. M., González, A., Vilella, A., San-Martín, M., Bertran, M. J., & Adell, C. (2001). Cost analysis of two strategies for preventing hepatitis A virus infection in Spanish travellers to developing countries. Cambridge University Press.

Bayas, J. M., A. González, A. Vilella, M. San-Martín, M. J. Bertran, and C. Adell. Cost Analysis of Two Strategies for Preventing Hepatitis A Virus Infection in Spanish Travellers to Developing Countries. Cambridge University Press, 2001.

Bayas, J. M., et al. Cost Analysis of Two Strategies for Preventing Hepatitis A Virus Infection in Spanish Travellers to Developing Countries. Cambridge University Press, 2001.