Não informado. (1969). Proceedings of the Japan Society of Civil Engineers. Japan Society of Civil Engineers.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Proceedings of the Japan Society of Civil Engineers. Tokyo: Japan Society of Civil Engineers, 1969.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Proceedings of the Japan Society of Civil Engineers. Japan Society of Civil Engineers, 1969.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.