Citazione Stile APA (7a Edizione)

Routledge & Kegan Paul & Barker, M. J. C. (1984). Directory for the environment: Organisations in Britain and Ireland 1984-5 (First published.). Routledge & Kegan Paul.

Citazione stile Chigago Style (17a edizione)

Routledge & Kegan Paul e Michael J. C. Barker. Directory for the Environment: Organisations in Britain and Ireland 1984-5. First published. London ; Boston ; Melbourne ; Henley: Routledge & Kegan Paul, 1984.

Citatione MLA (9a ed.)

Routledge & Kegan Paul e Michael J. C. Barker. Directory for the Environment: Organisations in Britain and Ireland 1984-5. First published. Routledge & Kegan Paul, 1984.