Symons, H. L. (1963). Playthings of yesterday: Harry Symons introduces the Percy Band Collection. Ryerson.
Lua i Stíl Chicago (17ú heag.)Symons, Harry Lutz. Playthings of Yesterday: Harry Symons Introduces the Percy Band Collection. Toronto: Ryerson, 1963.
Lua MLA (8ú heag.)Symons, Harry Lutz. Playthings of Yesterday: Harry Symons Introduces the Percy Band Collection. Ryerson, 1963.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.