Lua APA (7ú heag.)

Walton , R. (1989). The Encyclopaedia of forms and precedents (5.). Butter worth London.

Lua i Stíl Chicago (17ú heag.)

Walton , Raymond. The Encyclopaedia of Forms and Precedents. 5. London: Butter worth London, 1989.

Lua MLA (9ú heag.)

Walton , Raymond. The Encyclopaedia of Forms and Precedents. 5. Butter worth London, 1989.

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