VIKAS MAHTO DR KHANNAS OBJECTIVE QUESTIONS IN PETROLLEUM ENGINEERING (IMPORTANT MULTIPLE CHOICE QUESTIONS WITH ANSWERS) - 1 ST - KHANNA BOOK PUBLISHING CO (P) LTD 2018 - 281 P ISBN: 9789386173249 Subjects--Topical Terms: CHEMICAL ENGINEERING Dewey Class. No.: 665.5 VIK