Beer, Lawrence W.
School of Law University of Maryland, 1978
Buku Teks
Schall, Lawrence D., author
McGraw-Hill 1982, 1982
Buku Teks
Lawrence, Joe
Funk & Wagnalls Company, 1955
Buku Teks
Bass, Lawrence W.
Praeger , 1965
Buku Teks
Lorsch, Jay W.
Homewood, IL. Richard D. Irwin 1972,
Buku Teks