Citazione Stile APA (7a Edizione)

Catrin Brown. (2014). Higher level Chemistry (2nd edition.). Pearson education.

Citazione stile Chigago Style (17a edizione)

Catrin Brown. Higher Level Chemistry. 2nd edition. Essex: Pearson education, 2014.

Citatione MLA (9a ed.)

Catrin Brown. Higher Level Chemistry. 2nd edition. Pearson education, 2014.