Dyfyniad APA

Unknown. (2023). Report of the Director of Forestry 1932-3 (Fiscal year ended March 31, 1933). Forest Research Institute.

Dyfyniad Arddull Chicago

Unknown. Report of the Director of Forestry 1932-3 (Fiscal Year Ended March 31, 1933). Forest Research Institute, 2023.

Dyfyniad MLA

Unknown. Report of the Director of Forestry 1932-3 (Fiscal Year Ended March 31, 1933). Forest Research Institute, 2023.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.