Morris ,J.H.C. (1962). Rule Against Perpetuities (2nd.). Steven & Sons.
Cita Chicago (17th ed.)Morris ,J.H.C. Rule Against Perpetuities. 2nd. London: Steven & Sons, 1962.
Cita MLA (9th ed.)Morris ,J.H.C. Rule Against Perpetuities. 2nd. Steven & Sons, 1962.
Atenció: Aquestes cites poden no estar 100% correctes.