Spons' Encyclopaedia. Spons' Encylopaedia of the industrial arts, manufactures, commercial products: Division II. E.
Citazione stile Chigago Style (17a edizione)Spons' Encyclopaedia. Spons' Encylopaedia of the Industrial Arts, Manufactures, Commercial Products: Division II. London: E.
Citatione MLA (9a ed.)Spons' Encyclopaedia. Spons' Encylopaedia of the Industrial Arts, Manufactures, Commercial Products: Division II. E.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.