Kitoblar

Foner, P.S.,

Сoleman, J.R.,

Stevenson, D.K.,

Rose, M.D.,

Treece, M.,

Howell R.T., Allison J.R.,

Morgan T.D., Rotunda R.D.,

Zuckman H.L. and others,

Zuckman H.L. and others,

Аppadorai A., Rajan M.S.,

Кnutson, A.A.,

Walk R.D. and others.,

Aleinikoff T.A., Martin D.A.,

Roy, A.,