Geiger, W. E. (1978). Phytonymic derivational systems in the Romance languages: Studies in their origin and development. U.N.C. Dept. of Romance Languages.
芝加哥风格引文Geiger, Walter E. Phytonymic Derivational Systems in the Romance Languages: Studies in Their Origin and Development. Chapel Hill: U.N.C. Dept. of Romance Languages, 1978.
MLA引文Geiger, Walter E. Phytonymic Derivational Systems in the Romance Languages: Studies in Their Origin and Development. U.N.C. Dept. of Romance Languages, 1978.
警告：这些引文格式不一定是100％准确.