Unknown. (2023). Report of the Provisional Forestry Board for the year ended 30th June, 1927. Forest Research Institute.
Chicago-referens (17:e uppl.)Unknown. Report of the Provisional Forestry Board for the Year Ended 30th June, 1927. Forest Research Institute, 2023.
MLA-referens (9:e uppl.)Unknown. Report of the Provisional Forestry Board for the Year Ended 30th June, 1927. Forest Research Institute, 2023.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.