APA
Williston Samuel,, . (2000). A treatise on the law of contracts Vol. XIII. New York: West Group.
Chicago
Williston Samuel,, . 2000. A treatise on the law of contracts Vol. XIII. New York: West Group.
Harvard
Williston Samuel,, . (2000). A treatise on the law of contracts Vol. XIII. New York: West Group.
MLA
Williston Samuel,, . A treatise on the law of contracts Vol. XIII. New York: West Group. 2000.