Lua APA (7ú heag.)

RICHARDSON J F. (2006). COULSON AND RICHARDSON CHEMICALS (5TH.). BUTTERWORTH-HEINEMANN.

Lua i Stíl Chicago (17ú heag.)

RICHARDSON J F. COULSON AND RICHARDSON CHEMICALS. 5TH. NEW DELHI: BUTTERWORTH-HEINEMANN, 2006.

Lua MLA (9ú heag.)

RICHARDSON J F. COULSON AND RICHARDSON CHEMICALS. 5TH. BUTTERWORTH-HEINEMANN, 2006.

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