APA引文

Unabia, C. C. (2000). Walu and his farm. no date of publication].

芝加哥风格引文

Unabia, Carmen Ching. Walu and His Farm. [no place of publication: no date of publication], 2000.

MLA引文

Unabia, Carmen Ching. Walu and His Farm. no date of publication], 2000.