MLA

La Tour Eiffel. -Plan Du Premier Etage. 0AD. https://collections.library.yale.edu/catalog/2021550.

APA, 6th edition

La Tour Eiffel. -Plan du premier etage. (0 C.E.). [Building plans, Engravings, Illustrations, Prints (Visual works), Woodcuts]. https://collections.library.yale.edu/catalog/2021550.