Παραπομπή σε μορφή APA (7η εκδ.)

Greater San Diego Business Association. (1987). 1987-88 Register, business & professional services in San Diego (13. Auflage.). Greater San Diego Business.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Greater San Diego Business Association. 1987-88 Register, Business & Professional Services in San Diego. 13. Auflage. San Diego: Greater San Diego Business, 1987.

Παραπομπή σε μορφή MLA (8th εκδ.)

Greater San Diego Business Association. 1987-88 Register, Business & Professional Services in San Diego. 13. Auflage. Greater San Diego Business, 1987.