MLA

Charles Scribner's Sons, publisher, Grahame, Kenneth, 1859-1932, Shepard, Ernest H. (Ernest Howard), 1879-1976, ill. The wind in the willows / by Kenneth Grahame ; illustrated by Ernest H. Shepard. 1933. https://collections.library.yale.edu/catalog/10690932.

APA, 6th edition

Charles Scribner's Sons, publisher, & Grahame, Kenneth, 1859-1932, & Shepard, Ernest H. (Ernest Howard), 1879-1976, ill. (1933)[The wind in the willows / by Kenneth Grahame ; illustrated by Ernest H. Shepard]. https://collections.library.yale.edu/catalog/10690932.