Filas, F. L. (1953). I can't copy that family. Queen's Work.
Chicago-referens (17:e uppl.)Filas, Francis Lad. I Can't Copy That Family. St. Louis: Queen's Work, 1953.
MLA-referens (8:e uppl.)Filas, Francis Lad. I Can't Copy That Family. Queen's Work, 1953.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.