Não informado. (1938). Jack and Jill. Benjamin Franklin Literary and Medical Society.
Chicago-referens (17:e uppl.)Não informado. Jack and Jill. Indianapolis, Ind: Benjamin Franklin Literary and Medical Society, 1938.
MLA-referens (8:e uppl.)Não informado. Jack and Jill. Benjamin Franklin Literary and Medical Society, 1938.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.