Lua APA (7ú heag.)

Walford, J. (1980). Developments in food colours. Applied Science.

Lua i Stíl Chicago (17ú heag.)

Walford, John. Developments in Food Colours. London: Applied Science, 1980.

Lua MLA (9ú heag.)

Walford, John. Developments in Food Colours. Applied Science, 1980.

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