Columbia subject headings:
Laurence, Margaret--Correspondence.
McClelland, Jack, 1922---Correspondence.
Publishers and publishing--Canada--Correspondence.
Harvard subject headings:
Laurence, Margaret--Correspondence.
McClelland, Jack, 1922---Correspondence.
Publishers and publishing--Canada--Correspondence.
Princeton subject headings:
Laurence, Margaret--Correspondence.
McClelland, Jack, 1922---Correspondence.
Novelists, Canadian--20th century--Correspondence.
Publishers and publishing--Canada--Correspondence.