Hopson, B. (1993). Relationships: A question of quality. Mercury.
芝加哥风格引文Hopson, Barrie. Relationships: A Question of Quality. Oxfordshire: Mercury, 1993.
MLA引文Hopson, Barrie. Relationships: A Question of Quality. Mercury, 1993.
警告：这些引文格式不一定是100％准确.