Essays and soliloquies / Miguel de Unamuno ; translated from the Spanish with an introductory essay by J. E. Crawford Flitch

London [etc.] : George G. Harrap and Company , [1925?]

Tragic sense of life / Miguel de Unamuno ; translator, J.E. Crawford Flitch

[New York] : Dover Publications , 1954

The Tragic sense of life : in men and in peoples / by Miguel de Unamuno ; translated by J.E. Crawford Flitch ; with an introductory essay by Salvador de Madariaga

London : MacMillan and Co. , 1921