APA

Statutory Instruments. 1979 n. 4., HMSO, . (1979). Pelican pedestrian crossings (Amendment) regulations and general directions 1979. London: Statutory Instruments. 1979, nr 401.

Chicago

Statutory Instruments. 1979 nr 401, HMSO, . 1979. Pelican pedestrian crossings (Amendment) regulations and general directions 1979. London: Statutory Instruments. 1979, nr 401.

Harvard

Statutory Instruments. 1979 n. 4., HMSO, . (1979). Pelican pedestrian crossings (Amendment) regulations and general directions 1979. London: Statutory Instruments. 1979, nr 401.

MLA

Statutory Instruments. 1979 nr 401, HMSO, . Pelican pedestrian crossings (Amendment) regulations and general directions 1979. London: Statutory Instruments. 1979, nr 401. 1979.