Passenger air tariff :  worldwide rules : April 2018. 

 - 353 pages. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aeronautics, Commercial--Freight--Handbooks, manuals, etc.<br/>Airline--Rates--Handbooks, manuals, etc.<br/>Airlines--Reservation systems--Handbooks, manuals, etc
<br/><br/><label>LC Class. No.: </label>HE9783.5  / P377 2018