MLA

Spur-Historie, Gruppe S. PU R. Die Zeitschrift SPUR ... Gruppe Spur, , 1962. https://collections.library.yale.edu/catalog/10079621.

APA, 6th edition

Spur-Historie, G. S. P. U. R. (1962). Die Zeitschrift SPUR ... [Artists' books (AAT), illustrations (AAT), periodicals (AAT)]. Gruppe Spur, . https://collections.library.yale.edu/catalog/10079621.