The editors acknowledge with thanks the unsolicited as-
sistance of Andrei Shevchenko and G. T. Shuisky, ghost
writers for Mr. Khrushchev, without whose efforts these
words might never have been written.

Of particular help in providing background material
were the many studies made for executive agencies and
agencies for Congress by individuals, organizations, and
the institutes for Russian Studies at Columbia and Har-
vard Universities. The editors have drawn liberally from
this material as well as from the ideas of the many recent
writers on the subjects discussed.

Acknowledgment is made to E. P. Dutton & Co., Inc.,
and Hutchinson and Co., Ltd., of London, for permission
to quote from the official translation of Khrushchev's
speeches which appear in his work For Victory in Peace-
ful Competition with Capitalism.

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