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              D. S. Loughran, P. Martorell, T. Miller, J. A. Klerman, The Effect of Military Enlistment on Earn- ings and Education, RAND Corporation, Santa Monica, 2011, s. III. http://www.rand.org/content/ dam/rand/pubs/technical_reports/2011/RAND_TR995.pdf, dostęp 9.09.2015.
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              Loughran D. S., Martorell P., Miller T., Klerman J. A., The Effect of Military Enlistment on Earnings and Education, RAND Corporation, Santa Monica 2011, http://www.rand.org/content/ dam/rand/pubs/technical_reports/2011/RAND_TR995.pdf, dostęp 9.09.2015.
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        | ?:name | 
            
              Loughran, D. S., Martorell, P., Miller, T., Klerman, J. A. (2011). The Effect of Military Enlistment on Earn- ings and Education. Santa Monica: RAND Corporation.
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