Farnsworth, E. Allan
Oceana Publications,Inc, 1963
Buku Teks SO
Morehead, Joe
Libraries Unlimited, 1978
Buku Teks SO
Mayers, Lewis
Harper & Brothers, 1955
Buku Teks
Wesley-Smith, Peter
Oxford University Press, 1987
Buku Teks
sponsored by the American Association of Law Libraries ; edited by Richard A. Danner, Marie-Louise H. Bernal
Buku Teks