Stebbing, E. (2023). The blue pine ‘Polygraphus’ bark-borer (Polygraphus Major, Steb.). Indian Forest Leaflet . Forest Research Institute.
Lua i Stíl Chicago (17ú heag.)Stebbing, E.P. The Blue Pine ‘Polygraphus’ Bark-borer (Polygraphus Major, Steb.). Indian Forest Leaflet . Forest Research Institute, 2023.
Lua MLA (9ú heag.)Stebbing, E.P. The Blue Pine ‘Polygraphus’ Bark-borer (Polygraphus Major, Steb.). Indian Forest Leaflet . Forest Research Institute, 2023.
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