Grey, Z. (1923). Tappan's burro: And other stories. Harper & Brothers.
Lua i Stíl Chicago (17ú heag.)Grey, Zane. Tappan's Burro: And Other Stories. New York, London: Harper & Brothers, 1923.
Lua MLA (8ú heag.)Grey, Zane. Tappan's Burro: And Other Stories. Harper & Brothers, 1923.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.