APA استشهاد

Leigh, L. H. (1975). Police powers in England and Wales. Butterworths.

استشهاد بنمط شيكاغو

Leigh, L. H. Police Powers in England and Wales. London: Butterworths, 1975.

MLA استشهاد

Leigh, L. H. Police Powers in England and Wales. Butterworths, 1975.