Buddhism; its essence and development.

Conze, Edward, 1904-1979.
New York : Harper, [1959]

The Christian future; or the modern mind outrun.

Rosenstock-Huessy, Eugen, 1888-1973.
[New York] : Harper, [1966]

Early gentile Christianity and its Hellenistic background

Nock, Arthur Darby, 1902-1963.
New York : Harper & Row, [1964]

Faith and ethics; the theology of H. Richard Niebuhr.

Ramsey, Paul.
New York : Harper, [1965]

Form criticism; two essays on New Testament research.

Grant, Frederick C. (Frederick Clifton), 1891-1974.
New York : Harper & Row, c1962.

Kerygma and myth : a theological debate

New York : Harper & Row, [1961]
Rev. ed. of this translation / by Reginald H. Fuller.

Luther's progress to the Diet of Worms

Rupp, E. Gordon (Ernest Gordon), 1910-1986.
New York : Harper & Row, 1964.

Makers of the Christian tradition : from Alfred the Great to Schleiermacher

McNeill, John T. (John Thomas), 1885-1975.
New York : Harper & Row, 1964.

Medieval village, manor, and monastery.

Coulton, G. G. (George Gordon), 1858-1947.
New York : Harper, [1960]

The New Testament background: selected documents edited, with introductions

Barrett, C. K. (Charles Kingsley), 1917-2011.
New York : Harper, [1961]

Religion in essence and manifestation

Leeuw, G. van der (Gerardus), 1890-1950.
New York : Harper & Row, 1963.

Roman Catholicism.

Corbishley, Thomas.
New York : Harper & Row, [1964]

St. Paul.

Nock, Arthur Darby, 1902-1963.
New York : Harper & Row, [1963]

Works of love : some Christian reflections in the form of discourses

Kierkegaard, Søren, 1813-1855.
New York : Harper & Row, 1964, c1962.
1st Harper Torchbook ed.