MLA

A Gentle Spirit : a Fantastic Story. Harrison of Paris ; New York : Minton, Balch and Company, 1931. https://collections.library.yale.edu/catalog/2003343.

APA, 6th edition

A gentle spirit : a fantastic story. (1931). [Frontispieces (Illustrations), Title pages]. Harrison of Paris ; New York : Minton, Balch and Company. https://collections.library.yale.edu/catalog/2003343.