The Penkovsky papers /
Penʹkovskiĭ, Oleg Vladimirovich,1919-1963,author.
Gibney, Frank,1924-2006,writer of introduction.
Crankshaw, Edward,writer of foreword.
Deriabin, Peter,1921-1992,translator.
"Fontana Books."
Publisher's catalogue number 1435.
Originally published: 1965.