Ash, L. E. (1966). Who's who in library service: A biographical directory of professional librarians in the United States and Canada."Published later as biographical directory of librarians in the United States and Canada (4th ed.).
Dyfyniad Arddull ChicagoAsh, Lee Etc. Who's Who in Library Service: A Biographical Directory of Professional Librarians in the United States and Canada."Published Later as Biographical Directory of Librarians in the United States and Canada. 4th ed. 1966.
Dyfyniad MLAAsh, Lee Etc. Who's Who in Library Service: A Biographical Directory of Professional Librarians in the United States and Canada."Published Later as Biographical Directory of Librarians in the United States and Canada. 4th ed. 1966.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.