Não informado. (1968). Food Research Institute studies in agricultural economics, trade and development. Stanford University.
Citação do estilo Chicago (17ª ed.)Não informado. Food Research Institute Studies in Agricultural Economics, Trade and Development. Stanford, Conn: Stanford University, 1968.
Citação MLA (8ª ed.)Não informado. Food Research Institute Studies in Agricultural Economics, Trade and Development. Stanford University, 1968.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.