publisher: RAND Corporation
publish date: June 28th 2004
format: paperback pages: 119
language: English
ISBN:
0833035398 (9780833035394)
ISBN:
0903632403 (9780903632409)
publisher: Cambridge University Press publish date: June 27th 1975
format: paperback pages: 33
language: English
ISBN:
0521207029 (9780521207027)