00513nam a2200205Ia 4500 210417s9999 xx 000 0 und d 9789311124100 9311124109 621 DIN 22.621 DIN Gate Tutor 2018: Mechanical Engineering Gate Tutor 2018 Mechanical Engineering Ed 1. 940p Newdelhi Arihant Publications 2018 NULL Dinesh Nath Goswami 480770 480770