Não informado. (1964). Ohio report on research and development. Agricultural Research and Development Center.
Citação do estilo Chicago (17ª ed.)Não informado. Ohio Report on Research and Development. Wooster, Ohio: Agricultural Research and Development Center, 1964.
Citação MLA (8ª ed.)Não informado. Ohio Report on Research and Development. Agricultural Research and Development Center, 1964.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.