Operating Room Nursing Standards : NATN standards and recommendations for safe perioperative practice / [editors, John Beesley, Susan Pirie].; National Association of Theatre Nurses.
Operating Systems Computers Programming : OS X and iOS kernel programming [electronic resource] / by Ole Henry Halvorsen and Douglas Clarke.; Levine, Jonathan.
Operating Systems Computers Standards : IEEE standard for information technology : requirements and guidelines for test methods specifications and test method implementations for measuring conformance to POSIX(R) standards.
Operation Mincemeat : Deathly deception [electronic resource] : the real story of Operation Mincemeat / Denis Smyth.; Smyth, Denis,
2011
1
Operation Overlord : Operation Overlord, design and reality : the Allied invasion of Western Europe.; Norman, Albert,
1952
1
Operation Overlord In Art : Conquest & Overlord : the story of the Bayeux tapestry and the Overlord embroidery / by Brian Jewell ; illustrated by Philip Giggle.; Jewell, Brian.
Operation Restore Hope 1992 1993 Peace : UN peacekeeping in Lebanon, Somalia and Kosovo : operational and legal issues in practice / Ray Murphy.; Murphy, Ray,
2007
1
Operation Sea Lion : Operation Sea Lion : German plans for the invasion of England 1939-1942.; Wheatley, Ronald.
1958
1
Operation Totalize 1944 : No holding back : Operation Totalize, Normandy, August 1944.; Reid, Brian A.
Operational Art Military Science History : The evolution of operational art [electronic resource] : from Napoleon to the present / edited by John Andreas Olsen and Martin van Creveld.