Rapalje, Stewart; Lawrence, Robert L. (1997). "Consideration". A Dictionary of American and English Law: With Definitions of the Technical Terms of the Canon and Civil Laws : Also, Containing a Full Collection of Latin Maxims, and Citations of Upwards of Forty Thousand Reported Cases in which Words and Phrases Have Been Judicially Defined Or Construed. Vol. 1. The Lawbook Exchange. pp. 267–269. ISBN9781886363335.
Valenta, Marcel (2010). "United States of America". In Pfeiffer, Gero F.; Timmerbeil, Sven; Johannesdotter, Frederik; Tidwell, Kay L. (eds.). International Asset Transfer: An Overview of the Main Jurisdictions : a Practitioner's Handbook. Walter de Gruyter. pp. 591–616. ISBN9783899494822.