P., O., K. et al.(1990).Nato's stake in the new talks on conventional forces in Europe : regaining the high ground / Barry M. Blechman, William J. Durch, Kevin P. O'Prey .London:Macmillan Press.
Gaya MLA
O\'Prey, Kevin, P.. et al."Nato's stake in the new talks on conventional forces in Europe : regaining the high ground / Barry M. Blechman, William J. Durch, Kevin P. O'Prey".London:Macmillan Press,1990.Textbook.