Thorpe, E., & Thorpe, S. (2019). General studies Paper 1: For civil services preliminary examination. Pearson Education.
استشهاد بنمط شيكاغوThorpe, Edgar, و Showick Thorpe. General Studies Paper 1: For Civil Services Preliminary Examination. Noida: Pearson Education, 2019.
MLA استشهادThorpe, Edgar, و Showick Thorpe. General Studies Paper 1: For Civil Services Preliminary Examination. Pearson Education, 2019.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.