Columbia subject headings:
MacKinnon, Donald M. (Donald MacKenzie), 1913-1994--Congresses.
Philosophical theology--Congresses.
Harvard subject headings:
MacKinnon, Donald M. (Donald MacKenzie), 1913-1994--Congresses.
Philosophical theology--Congresses.
Princeton subject headings:
MacKinnon, Donald M. (Donald MacKenzie), 1913-1994--Congresses.
Philosophical theology--Congresses.