APA (7th ed.) Citation

Madariaga, S. d. (1959). What is happening in Spain?: The problem of Spanish socialism. [publisher not identified].

Chicago Style (17th ed.) Citation

Madariaga, Salvador de. What Is Happening in Spain?: The Problem of Spanish Socialism. Madrid: [publisher not identified], 1959.

MLA (9th ed.) Citation

Madariaga, Salvador de. What Is Happening in Spain?: The Problem of Spanish Socialism. [publisher not identified], 1959.