Chalk, R., Frankel, M. S., & Chafer, S. B. (1981). AAAS professional ethics project: Professional ethics activities in the scientific and engineering societies. American Association for the Advancement of Science Committee on scientific freedom amd responsibility.
Cita Chicago Style (17a ed.)Chalk, Rosemary, Mark S. Frankel, y Sallie B. Chafer. AAAS Professional Ethics Project: Professional Ethics Activities in the Scientific and Engineering Societies. Washington: American Association for the Advancement of Science Committee on scientific freedom amd responsibility, 1981.
Cita MLA (9a ed.)Chalk, Rosemary, et al. AAAS Professional Ethics Project: Professional Ethics Activities in the Scientific and Engineering Societies. American Association for the Advancement of Science Committee on scientific freedom amd responsibility, 1981.