Ethical and Religious Directives (ERDs or Directives) is the document that offers moral guidance drawn from the Catholic Church's theological and moral teachings, on various aspects of health care delivery. You can find the directives on the website of the the United States Conference of Catholic Bishops or find a copy in the Welder Library.
Documents of John Paul II - Vatican
Pope John Paul II - Catholic News Agency
Pope John Paul II - Catholic Information Network
Saint John Paul II: The Life and ministry of Saint John Paul II - United States Conference of Catholic Bishops
The Stanford Encyclopedia of Philosophy provides definitions and background information on individual philosophers and their beliefs.
This book is written by leading international experts in Christian ethics and is aimed at students in upper-level undergraduate courses, at teachers and at graduate students. It will be useful as well to ministers and other professionals within the church. Its eighteen chapters provide a thorough introduction to Christian ethics that is both authoritative and up-to-date. All contributors have been chosen because they are significant scholars with a proven track record of balanced, comprehensive and comprehensible writing.