Albus Liber
Defined in 2 dictionaries — Cyclopedic (1922), Black's (1910)
The Cyclopedic Law Dictionary
Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
An ancient book containing a compilation of the law and customs of the city of London. Wharton. ALCABALA (Spanish). A duty of a certain per cent, paid to the treasury on the sale or exchange of property. Schmidt, Civ. Law, 81, note 1.
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
The white book; an ancient book containing a compilation of the law and customs of the city of London. It has lately been reprinted by order of the master of the rolls.