Columbia subject headings:
Mortier, Jeanne--Correspondence.
Philosophers--France--Correspondence.
Philosophy.
Teilhard de Chardin, Pierre--Correspondence.
Theology.
Harvard subject headings:
Mortier, Jeanne--Correspondence.
Philosophers--France--Correspondence
Philosophy.
Teilhard de Chardin, Pierre--Correspondence.
Theology.
Princeton subject headings:
Mortier, Jeanne--Correspondence.
Philosophers--France--Correspondence.
Philosophy.
Teilhard de Chardin, Pierre--Correspondence.
Theology.