Rubin, R., & Froehlich, T. (2010). Ethical Aspects of Library and Information Science. Encyclopedia of Library and Information Sciences. https://doi.org/10.1081/E-ELIS3-120044430
Rubin, Richard, and Thomas Froehlich. 2010. “Ethical Aspects of Library and Information Science”. Encyclopedia of Library and Information Sciences. https://doi.org/10.1081/E-ELIS3-120044430.
Rubin, R., and T. Froehlich. Ethical Aspects of Library and Information Science. Encyclopedia of Library and Information Sciences, 1 Feb. 2010, doi:10.1081/E-ELIS3-120044430.