Autor:	RICHARDSON, E. C., AHERN, MARY E., SHEPARD, IRWIN, WILKINSON, J. N., AHERN, M. E., DEWEY, MELVIL, CANFIELD, JAMES H., HENSEL, MARTIN, Tighe, R. J.
Zdroj:	Bulletin of the American Library Association, 1907 Jul 01. 1(4), 87-92.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/25684686 Zobrazit plný text záznamu