Παραπομπή σε μορφή APA (7η εκδ.)

al.], C. R. H. .. (1979). General Business In Our Modern Society Charles R. Hopkins...[et Al.]. Glencoe Publishing.

Παραπομπή σε μορφή Chicago (17η εκδ.)

al.], CHARLES R. Hopkins ...[el. General Business In Our Modern Society Charles R. Hopkins...[et Al.]. Glencoe Publishing, 1979.

Παραπομπή σε μορφή MLA (8th εκδ.)

al.], CHARLES R. Hopkins ...[el. General Business In Our Modern Society Charles R. Hopkins...[et Al.]. Glencoe Publishing, 1979.