Adamson, P. (1993). Facts for life: A communication challenge (Rev. ed.). P&LA.
Lua i Stíl Chicago (17ú heag.)Adamson, Peter. Facts for Life: A Communication Challenge. Rev. ed. Benson, Oxfordshire, U.K: P&LA, 1993.
Lua MLA (9ú heag.)Adamson, Peter. Facts for Life: A Communication Challenge. Rev. ed. P&LA, 1993.
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