Hart, G. (2023). Working-plan for the Simla Water-Supply, Catchment Area Forests, Punjab. 1897. Civil and Military Gazette, Punjab.
Chicago-referens (17:e uppl.)Hart, G.S. Working-plan for the Simla Water-Supply, Catchment Area Forests, Punjab. 1897. Civil and Military Gazette, Punjab, 2023.
MLA-referens (9:e uppl.)Hart, G.S. Working-plan for the Simla Water-Supply, Catchment Area Forests, Punjab. 1897. Civil and Military Gazette, Punjab, 2023.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.