Παραπομπή σε μορφή APA (7η εκδ.)

Blackham, H. J. (1974). Ethical standards in counselling: Papers presented by a working party to the Standing Conference for the Advancement of Counselling. Bedford Square Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Blackham, H. J. Ethical Standards in Counselling: Papers Presented by a Working Party to the Standing Conference for the Advancement of Counselling. London: Bedford Square Press, 1974.

Παραπομπή σε μορφή MLA (8th εκδ.)

Blackham, H. J. Ethical Standards in Counselling: Papers Presented by a Working Party to the Standing Conference for the Advancement of Counselling. Bedford Square Press, 1974.