APA (7th ed.) Citation

Unamuno y Jugo, M. d. (1945). Perplexities and paradoxes. Greenwood Press.

Chicago Style (17th ed.) Citation

Unamuno y Jugo, Miguel de. Perplexities and Paradoxes. New York: Greenwood Press, 1945.

MLA (9th ed.) Citation

Unamuno y Jugo, Miguel de. Perplexities and Paradoxes. Greenwood Press, 1945.