Smith, C. A., Wood, E. J., Sangines Franchini, M. C., Goni Urcelay, F. M., & Macarulla, J. M. (1998). Biologia molecular y biotecnologia. Wilmington, Delaware ; Mexico: Addison-Wesley Iberoamericana.

Smith, Christopher A., E. J. Wood, Maria Cristina Sangines Franchini, Felix Maria Goni Urcelay, and Jose M. Macarulla. Biologia Molecular Y Biotecnologia. Wilmington, Delaware ; Mexico: Addison-Wesley Iberoamericana, 1998.

Smith, Christopher A., et al. Biologia Molecular Y Biotecnologia. Wilmington, Delaware ; Mexico: Addison-Wesley Iberoamericana, 1998.