Columbia subject headings:
Apologetics.
Chesterton, G. K. (Gilbert Keith), 1874-1936.
Christianity--Essence, genius, nature.
Harvard subject headings:
Apologetics
Chesterton, G. K. (Gilbert Keith), 1874-1936
Christianity--Essence, genius, nature
Princeton subject headings:
Apologetics.
Chesterton, G. K. (Gilbert Keith), 1874-1936--Criticism, interpretation, etc.
Christianity--Essence, genius, nature.