Cite

Three geometrical drawings showing how to navigate using the sun and the horizon

MLA

Three Geometrical Drawings Showing How to Navigate Using the Sun and the Horizon. 0AD. https://collections.library.yale.edu/catalog/2004670.

APA, 6th edition

Three geometrical drawings showing how to navigate using the sun and the horizon. (0 C.E.). [Diagrams, Illustrations, Instructions (Document genre)]. https://collections.library.yale.edu/catalog/2004670.