New York : Haworth Press, 1993.

Internet Archive >> None

Metuchen, N.J. : Scarecrow Press, 1973.

Internet Archive >> None

Rendón Rojas, Miguel Angel

México, D.F. : Universidad Nacional Autónoma de México, Centro Universitario de Investigaciones Bibliotecológicas, 1997.

Internet Archive >> None

Stokes, Roy Bishop, 1915-

Metuchen, N.J. : Scarecrow Press, 1981.

Internet Archive >> None

Simpson, I. S. (Ian Stuart), 1927-

London : Bingley, 1975.

Internet Archive >> None

McGarry, K. J.

London : C. Bingley ; Hamden, Conn. : Linnet Books, 1975.

Internet Archive >> None

Change Institute, University of Maryland, (1969)

Westport, Conn., Greenwood Pub. Co. [1972]

Internet Archive >> None

Gorman, Michael, 1941-

Chicago : American Library Association, 2005.

Internet Archive >> None

Powell, Ronald R.

Westport, Conn. : Libraries Unlimited, 2004.

Internet Archive >> None

Cronin, Blaise

Lanham, Md. : Scarecrow Press, 2003.

Internet Archive >> None