Não informado. (2022). Research Note PSW. Pacific Southwest Forest and Range Experiment Station.
Citação do estilo Chicago (17ª ed.)Não informado. Research Note PSW. Berkeley, Calif: Pacific Southwest Forest and Range Experiment Station, 2022.
Citação MLA (8ª ed.)Não informado. Research Note PSW. Pacific Southwest Forest and Range Experiment Station, 2022.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.