Παραπομπή σε μορφή APA (7η εκδ.)

Harjes, e. b. H. E. a. H. ACOUSTICAL imaging volume 19 proceedings of the 19th International Symposium, April 3-5, 1991. Plenum Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Harjes, edited by Helmut Ermert and Hans-Peter. ACOUSTICAL Imaging Volume 19 Proceedings of the 19th International Symposium, April 3-5, 1991. Plenum Press.

Παραπομπή σε μορφή MLA (8th εκδ.)

Harjes, edited by Helmut Ermert and Hans-Peter. ACOUSTICAL Imaging Volume 19 Proceedings of the 19th International Symposium, April 3-5, 1991. Plenum Press.