TY - BOOK A1 - Kierkegaard, Søren T1 - Fear and trembling and the sickness unto death, New York (Doubleday Anchor Books) 1954. Y1 - 1954 N1 - Marks in the copy ER - TY - BOOK A1 - Kierkegaard, Søren T1 - Purity of heart is to will one thing, New York (Harper & Brothers) 1956. Y1 - 1956 N1 - Marks in the copy ER - TY - BOOK A1 - Kierkegaard, Søren T1 - Either / or. Volume one, New York (Anchor Books) 1959. Y1 - 1959 ER - TY - BOOK A1 - Kierkegaard, Søren T1 - Either / or. Volume two, New York (Anchor Books) 1959. Y1 - 1959 ER -