Não informado. (1891). Bulletin of the Utah Agricultural Experiment Station. Utah Agricultural Experiment Station.
Citação do estilo Chicago (17ª ed.)Não informado. Bulletin of the Utah Agricultural Experiment Station. Logan, Utah: Utah Agricultural Experiment Station, 1891.
Citação MLA (8ª ed.)Não informado. Bulletin of the Utah Agricultural Experiment Station. Utah Agricultural Experiment Station, 1891.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.