Stebbing, E. (2023). The blue pine ‘Polygraphus’ bark-borer (Polygraphus Major, Steb.). Indian Forest Leaflet . Forest Research Institute.
Chicago-referens (17:e uppl.)Stebbing, E.P. The Blue Pine ‘Polygraphus’ Bark-borer (Polygraphus Major, Steb.). Indian Forest Leaflet . Forest Research Institute, 2023.
MLA-referens (9:e uppl.)Stebbing, E.P. The Blue Pine ‘Polygraphus’ Bark-borer (Polygraphus Major, Steb.). Indian Forest Leaflet . Forest Research Institute, 2023.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.