Clap, T. (1765). An essay on the nature and foundation of moral virtue and obligation: Being a short introduction to the study of ethics; for the use of the students of Yale-college. Printed by B. Mecom.
Lua i Stíl Chicago (17ú heag.)Clap, Thomas. An Essay on the Nature and Foundation of Moral Virtue and Obligation: Being a Short Introduction to the Study of Ethics; for the Use of the Students of Yale-college. New-Haven: Printed by B. Mecom, 1765.
Lua MLA (8ú heag.)Clap, Thomas. An Essay on the Nature and Foundation of Moral Virtue and Obligation: Being a Short Introduction to the Study of Ethics; for the Use of the Students of Yale-college. Printed by B. Mecom, 1765.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.