'"Q" Code and other Abbreviations to be used in the Civil Aeronautical Radio Service (A.P. 1529) 2nd Edition, June, 1937. Amendment List 4, August, 1939.' from His Majesty's Stationary Office (HMSO) Catalogue

Name	"Q" Code and other Abbreviations to be used in the Civil Aeronautical Radio Service (A.P. 1529) 2nd Edition, June, 1937. Amendment List 4, August, 1939.
Category	Air Reference
Department	Air Ministry
Issued For	none
SO.Code	22-9999
Distribution	unknown
Distribution Information	unknown
Listed In HMSO Index	Oct/1939
Pages	unknown
Printer	unknown
Size	unknown
Price	none