Fuentes de información analizadas

Fuentes:

Campbell, Neil A., et al. Biology. Addison Wesley Longman, Inc. 1999, Menlo Park, CA.

Curtis, Helen. Biology. Worth Publishers, Inc. 1983, New York, New York.

Boyer, Rodney. Concepts in Biochemistry. 1999. Brooks/Cole Publishing Company: Thomson Corporation; Stamford, CT.

ROCHER, Guy. Introducción a la sociología general. Ed. Herder. Barcelona 1.985. Pags. 111 y 132.