Cite

Presentation of TWA logo and New York Airways helicopter sign variations

MLA

Saarinen, Eero, 1910-1961. Presentation of TWA logo and New York Airways helicopter sign variations. folder 689A | folder 689B. undated. https://collections.library.yale.edu/catalog/10187191.

APA, 6th edition

Saarinen, Eero, 1910-1961. (["folder 689A | folder 689B"])(undated)[Presentation of TWA logo and New York Airways helicopter sign variations]. https://collections.library.yale.edu/catalog/10187191.