Hohfeld, J. M. (1950). An experiment employing two method of teaching Spanish to college freshmen. [s.n.].
芝加哥风格引文Hohfeld, John Maurice. An Experiment Employing Two Method of Teaching Spanish to College Freshmen. Philadelphia: [s.n.], 1950.
MLA引文Hohfeld, John Maurice. An Experiment Employing Two Method of Teaching Spanish to College Freshmen. [s.n.], 1950.
警告：这些引文格式不一定是100％准确.