Cite

2. Two dirigibles(Zeppelin) in New Jersey. [3506-2]

MLA

2. Two Dirigibles(Zeppelin) in New Jersey. [3506-2]. 1921. https://collections.library.yale.edu/catalog/10666992.

APA, 6th edition

2. Two dirigibles(Zeppelin) in New Jersey. [3506-2]. (1921). [Scrapbooks]. https://collections.library.yale.edu/catalog/10666992.