APA引文

Tredgold, R. F. Tredgold's mental retardation (11. ed.).

芝加哥风格引文

Tredgold, R. F. Tredgold's Mental Retardation. 11. ed.

MLA引文

Tredgold, R. F. Tredgold's Mental Retardation. 11. ed.

警告：这些引文格式不一定是100％准确.