Symons, H. L. (1963). Playthings of yesterday: Harry Symons introduces the Percy Band Collection. Ryerson.
Citazione stile Chigago Style (17a edizione)Symons, Harry Lutz. Playthings of Yesterday: Harry Symons Introduces the Percy Band Collection. Toronto: Ryerson, 1963.
Citatione MLA (8a ed.)Symons, Harry Lutz. Playthings of Yesterday: Harry Symons Introduces the Percy Band Collection. Ryerson, 1963.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.