Não informado. (1978). Current Bibliography Directory of the Arts and Sciences. Institute for Scientific Information.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Current Bibliography Directory of the Arts and Sciences. Philadelphia, Pa: Institute for Scientific Information, 1978.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Current Bibliography Directory of the Arts and Sciences. Institute for Scientific Information, 1978.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.