- Traditional Chinese Character(HanT):
外因論
- Simplified Chinese Character(HanS):
外因论
- Bopomofo(Mandarin Phonetic Symbols): ㄨㄞˋ ㄧㄣ ㄌㄨㄣˋ (ㄨㄧㄌ)
- Bopomofo(Zhuyin Keyboard Input/IME): "j94up xjp4" (j94upxjp4)
- (ASCII) Hanyu Pinyin: "waiyinlun" "Wai4Yin1Lun4" "Wai4 Yin1 Lun4" (WYL)
- (Latin) Hànyǔ Pīnyīn: WàiYīnLùn [ Wài Yīn Lùn ]
- (英文翻譯) English Translation: "external cause theory"
- (西語翻譯) Traducción Español: "teoría de la causa externa"
- (日文翻譯) 日本語翻訳: "外因説"