Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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