MLA

Hooker, Joseph Dalton, 1817-1911. Illustrations of Himalayan plants, chiefly selected from drawings made for the late J. F. Cathcart, esquire .... 1855]. https://collections.library.yale.edu/catalog/33068281.

APA, 6th edition

Hooker, Joseph Dalton, 1817-1911. (1855])[Illustrations of Himalayan plants, chiefly selected from drawings made for the late J. F. Cathcart, esquire ...]. https://collections.library.yale.edu/catalog/33068281.