Cite

Fig.1 Leaves and flowers of AE. Californica, 1/2 natural size, and a flower of the natural size. [Illustrations on page 20 of REPORTS VOL. 6.]

MLA

Fig.1 Leaves and Flowers of AE. Californica, 1/2 Natural Size, and a Flower of the Natural Size. [Illustrations on Page 20 of REPORTS VOL. 6.]. 0AD. https://collections.library.yale.edu/catalog/2015717.

APA, 6th edition

Fig.1 Leaves and flowers of AE. Californica, 1/2 natural size, and a flower of the natural size. [Illustrations on page 20 of REPORTS VOL. 6.]. (0 C.E.). [Relief prints, Wood engravings]. https://collections.library.yale.edu/catalog/2015717.