Cite

21st Annual Glee Club Jamboree, 04/26/1968--flier

MLA

21st Annual Glee Club Jamboree, 04/26/1968--Flier. 1968. https://collections.library.yale.edu/catalog/10537429.

APA, 6th edition

21st Annual Glee Club Jamboree, 04/26/1968--flier. (1968). [Paper]. https://collections.library.yale.edu/catalog/10537429.