Text ( visual ) : unmediated The principles of conduct : an introduction to theoretical and applied ethics / Daniel Sommer Robinson. -- New York : Appleton-Century-Crofts , c1948. -- xviii, 420 p. : ill. ; 22 cm. -- Includes bibliographical references (p. 399-407) and index. -- (BB03719391) ; https://ci.nii.ac.jp/ncid/BB03719391 Author Heading(s): Robinson, Daniel S.. -- Classification(s): LCC : BJ1011 ; DC : 170. -- Subject Heading(s): LCSH : Ethics ; LCSH : Conduct of life