Negi, Jagmohan Air travel ticketing and fare construction : with examination questions / Jagmohan Negi and Gaurav Manohar - New Delhi : Kanishka Publishers, 2019. - xvi , 494 p. : ill. ; 23 cm. Include index. ISBN: 8173916284 9788173916281 Subjects--Topical Terms: Airlines--Rates.Commerce.Airlines--Prices.Transportation--Rates. Dewey Class. No.: 387.712 / NEG