GKP. (2023). IELTS Academic+General Text Preparation Set (Grammer). G.K Publication.
芝加哥风格引文GKP. IELTS Academic+General Text Preparation Set (Grammer). Faridabad: G.K Publication, 2023.
MLA引文GKP. IELTS Academic+General Text Preparation Set (Grammer). G.K Publication, 2023.
警告：这些引文格式不一定是100％准确.