APA

Keir D L, Lawson F H, . (1979). Cases in constitutional law. Oxford: Clarendon Press.

Chicago

Keir D L, Lawson F H, . 1979. Cases in constitutional law. Oxford: Clarendon Press.

Harvard

Keir D L, Lawson F H, . (1979). Cases in constitutional law. Oxford: Clarendon Press.

MLA

Keir D L, Lawson F H, . Cases in constitutional law. Oxford: Clarendon Press. 1979.