Heyn, E. T. (1907). How Germany makes toys for the World`s Christmas. The american review of reviews.
Citazione stile Chigago Style (17a edizione)Heyn, Edward T. "How Germany Makes Toys for the World`s Christmas." The American Review of Reviews 1907.
Citatione MLA (8a ed.)Heyn, Edward T. "How Germany Makes Toys for the World`s Christmas." The American Review of Reviews, 1907.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.