Columbia subject headings:
Sinclair, Ronald A.--Correspondence.
Sinclair, Ronald A.--Diaries.
Soldiers' writings, Australian.
World War, 1914-1918--Personal narratives, Australian.
Harvard subject headings:
Sinclair, Ronald A.--Correspondence.
Sinclair, Ronald A.--Diaries.
Soldiers' writings, Australian
World War, 1914-1918--Personal narratives, Australian
Princeton subject headings: