Bates, Ralph
The Olive field / Ralph bates
E.P. Dutton, 1936
 Koleksi Publik
Preston, Paul
The Spanish civil war 1936-1939
Dorsey Press, 1986
 Buku Teks SO
Thomas, Hugh
The Spanish civil war
Harper & Brothers, 1961
 Buku Teks SO
Cattell, David T.
Soviet diplomacy and the spanish civil war / David T. Cattell
University of California Press, 1957
 Buku Teks SO
Brenan, Gerald
The Spanish labyrinth: an account of the social and political background of the civil war / Gerald Brenan
Cambridge University Press, 1993
 Buku Teks SO