APA-viite (7. p.)

Hepple, B., & O' Higgins, P. (1972). Encyclopedia of labour relations law. Sweet & Maxwell.

Chicago-viite (17. p.)

Hepple, B.A, ja Paul O' Higgins. Encyclopedia of Labour Relations Law. London: Sweet & Maxwell, 1972.

MLA-viite (9. p.)

Hepple, B.A, ja Paul O' Higgins. Encyclopedia of Labour Relations Law. Sweet & Maxwell, 1972.