Gaya APA

Curtis, C. et al (). Chemistry: Pearson Edexcel Internasional A Level (Student Book 2) . Inggris: Pearson Education Limited,80 Strand, london, W2RoR.

Gaya MLA

Curtis, Cliff. et al. "Chemistry: Pearson Edexcel Internasional A Level (Student Book 2)". Inggris: Pearson Education Limited,80 Strand, london, W2RoR, . print.