APA-referens (7:e uppl.)

Crabb, L. (1991). Leases: Covenants and Consents. Sweet & Maxwell.

Chicago-referens (17:e uppl.)

Crabb, Letitia. Leases: Covenants and Consents. London: Sweet & Maxwell, 1991.

MLA-referens (9:e uppl.)

Crabb, Letitia. Leases: Covenants and Consents. Sweet & Maxwell, 1991.