Unknown. (2023). Progress Report of Forest Research Work in India for the year 1921-22: Including the Administration Report of the Forest Research Institute, Dehradun. Superintendent Government Central Press.
Չիկագոյի ոճի (17րդ խմբ.) մեջբերումUnknown. Progress Report of Forest Research Work in India for the Year 1921-22: Including the Administration Report of the Forest Research Institute, Dehradun. Superintendent Government Central Press, 2023.
MLA (9րդ խմբ.) ՄեջբերումUnknown. Progress Report of Forest Research Work in India for the Year 1921-22: Including the Administration Report of the Forest Research Institute, Dehradun. Superintendent Government Central Press, 2023.
Զգուշացում. այս մեջբերումները միշտ չէ, որ կարող են 100% ճշգրիտ լինել.