(2014). UPSC-Engineering services examination: Chapterwise solved papers 1991-2013:general ability test. G K Publications.
Trích dẫn kiểu ChicagoUPSC-Engineering Services Examination: Chapterwise Solved Papers 1991-2013:general Ability Test. Noida: G K Publications, 2014.
Trích dẫn MLAUPSC-Engineering Services Examination: Chapterwise Solved Papers 1991-2013:general Ability Test. G K Publications, 2014.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.