Unknown. (2023). Progress Report of Forest Research Work in India for the Year 1919-20: Including the Administration Report of the Forest Research Institute, Dehra Dun. Forest Research Institute, Dehradun.
Չիկագոյի ոճի (17րդ խմբ.) մեջբերումUnknown. Progress Report of Forest Research Work in India for the Year 1919-20: Including the Administration Report of the Forest Research Institute, Dehra Dun. Forest Research Institute, Dehradun, 2023.
MLA (9րդ խմբ.) ՄեջբերումUnknown. Progress Report of Forest Research Work in India for the Year 1919-20: Including the Administration Report of the Forest Research Institute, Dehra Dun. Forest Research Institute, Dehradun, 2023.
Զգուշացում. այս մեջբերումները միշտ չէ, որ կարող են 100% ճշգրիտ լինել.