Columbia subject headings:
Philosophy of religion.
Royce, Josiah, 1855-1916.
Royce, Josiah, 1855-1916. Problem of Christianity.
Harvard subject headings:
Royce, Josiah, 1855-1916--Contributions in philosophy of religion.
Royce, Josiah, 1855-1916--Religion.
Royce, Josiah, 1855-1916. Problem of Christianity.
Princeton subject headings:
Royce, Josiah, 1855-1916--Contributions in philosophy of religion.
Royce, Josiah, 1855-1916. Problem of Christianity.