Look unpleasant, please.
MLA
Ehrhart, S. D. (Samuel D.), ca. 1862-1937. Look unpleasant, please.. 1907 August 28. https://collections.library.yale.edu/catalog/10094534.
APA, 6th edition
Ehrhart, S. D. (Samuel D.), ca. 1862-1937. (1907 August 28)[Look unpleasant, please.]. https://collections.library.yale.edu/catalog/10094534.