APA (7th ed.) Citation

Valdés, M. J., Unamuno, M. d., & Valdés, M. E. (1973). An Unamuno source book: : A catalogue of readings and acquisitions with an introductory essay on Unamuno's dialectical enquiry. University of Toronto.

Chicago Style (17th ed.) Citation

Valdés, Mario J., Miguel de Unamuno, and María Elena Valdés. An Unamuno Source Book: : A Catalogue of Readings and Acquisitions with an Introductory Essay on Unamuno's Dialectical Enquiry. Toronto: University of Toronto, 1973.

MLA (9th ed.) Citation

Valdés, Mario J., et al. An Unamuno Source Book: : A Catalogue of Readings and Acquisitions with an Introductory Essay on Unamuno's Dialectical Enquiry. University of Toronto, 1973.