Cite

Blackie & Son, limited, Glasgow

MLA

Gissing, George, 1857-1903. Blackie & Son, limited, Glasgow. Box 7, folder 136. 1897 Sep 6. https://collections.library.yale.edu/catalog/16495594.

APA, 6th edition

Gissing, George, 1857-1903. (["Box 7, folder 136"])(1897 Sep 6)[Blackie & Son, limited, Glasgow]. https://collections.library.yale.edu/catalog/16495594.