Schools Council, Nuffield Foundation, Nuffield Foundation, & Scottish Education Department. (1973). Metals ; background information: A unit for teachers. MacDonald Educational.
Citazione stile Chigago Style (17a edizione)Schools Council, Nuffield Foundation, Nuffield Foundation, e Scottish Education Department. Metals ; Background Information: A Unit for Teachers. London: MacDonald Educational, 1973.
Citatione MLA (9a ed.)Schools Council, Nuffield Foundation, et al. Metals ; Background Information: A Unit for Teachers. MacDonald Educational, 1973.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.