Air defenses -- Congresses. : Emerging threats, force structures, and the role of air power in Korea / edited by Natalie W. Crawford, Chung-in Moon
2000
1
Air defenses -- Equipment and supplies. : Civil defence : a practical manual presenting with working drawings the methods required for adequate protection against aerial attack / by C.W. Glover
Air defenses -- Europe : The future of NATO airpower : how are future capability plans within the alliance diverging and how can interoperability be maintained? / Justin Bronk
Air defenses -- Great Britain -- World War II : Training of instructors (L.A.R.P.) : and training of A.R.P. personnel and members of the public in elementary methods of protection against high explosive bombs and incendiary bomb control / Home Office, Air raid precautions department
1939
1
Air defenses -- Handbooks, manuals, etc. : A.R.P. : air raid precautions for Australians, H.E. - fires - gas : the civilians' guide : what to do before, during and after an air raid
Australia -- Air defenses, Military : The future of tactical airpower in the defence of Australia : proceedings of a conference organised by the Strategic and Defence Studies Centre, the Australian National University, November 1976 / edited by Desmond Ball
Air ducts -- Cleaning. : Hygienic maintenance of office ventilation ductwork / [C.A. Hunter, P.F. Grigg, J.T. Smith]
2000
1
Air ducts -- Design and construction : Structural design of air and gas ducts for power stations and industrial boiler applications / Air and Gas Duct Structural Design Committee of the Energy Division of the American Society of Civil Engineers
Air -- Early works to 1800. : Experiments and observations on different kinds of air : and other branches of natural philosophy, connected with the subject. / Birmingham, Printed by Thomas Pearson, 1790
Any substance in the air which could, if present in high enough concentration, harm humans, animals, vegetation or materials. Substances include GASES; PARTICULATE MATTER; and volatile ORGANIC CHEMICALS
