Cite

25) Bernard Heidsieck - Gianni Bertini - P.A. Gette: B2 B3

MLA

Bertini, Gianni, 1922-2010. 25) Bernard Heidsieck - Gianni Bertini - P.A. Gette: B2 B3. Box 101. undated. https://collections.library.yale.edu/catalog/16706454.

APA, 6th edition

Bertini, Gianni, 1922-2010. (["Box 101"])(undated)[25) Bernard Heidsieck - Gianni Bertini - P.A. Gette: B2 B3]. https://collections.library.yale.edu/catalog/16706454.