Reference books of 1935/37-1944/46. :
An informal supplement to Guide to reference books, sixth edition /
by Isadore Gilbert Mudge.

APA Citation

Mudge, I. Gilbert., Winchell, C. M. (Constance Mabel)., American Library Association. (19391947). Reference books of 1935/37-1944/46.: An informal supplement to Guide to reference books, sixth edition. Chicago: American Library Association.

MLA Citation

Mudge, Isadore Gilbert, 1875-1957, Constance M. (Constance Mabel) Winchell, and American Library Association. Reference Books of 1935/37-1944/46.: An Informal Supplement to Guide to Reference Books, Sixth Edition. Chicago: American Library Association, 19391947.