Columbia subject headings:
Missionaries, Medical--Gabon--Lambaréné (Moyen-Ogooué)--Correspondence.
Schweitzer, Albert, 1875-1965--Correspondence.
Harvard subject headings:
Missionaries, Medical--Gabon--Lambaréné (Moyen-Ogooué)--Correspondence.
Schweitzer, Albert, 1875-1965--Correspondence.
Princeton subject headings:
Missionaries, Medical--Gabon--Lambaréné (Moyen-Ogooué)--Correspondence.
Schweitzer, Albert, 1875-1965--Correspondence.