APA aipamena

Sugiyama, G. (1996). Valve apparatus and hydraulic drive system. Patent Office Calcutta.

Chicago Style aipamena

Sugiyama, Genroku. Valve Apparatus and Hydraulic Drive System. Calcutta: Patent Office Calcutta, 1996.

MLA aipamena

Sugiyama, Genroku. Valve Apparatus and Hydraulic Drive System. Patent Office Calcutta, 1996.