Trevor, C. (2023). Practical hints on thinning in coniferous woods. Indian Forest Leaflet . Superintendent, Government Printing, Punjab.
Chicago-referens (17:e uppl.)Trevor, C.G. Practical Hints on Thinning in Coniferous Woods. Indian Forest Leaflet . Superintendent, Government Printing, Punjab, 2023.
MLA-referens (9:e uppl.)Trevor, C.G. Practical Hints on Thinning in Coniferous Woods. Indian Forest Leaflet . Superintendent, Government Printing, Punjab, 2023.
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