Gaya APA
Wirosoemarto, S. (1991).
Draft general information on the fourth international training course on erosion sediment control engineering .
Yogyakarta:
Ministry of Public Works.
Gaya MLA
Wirosoemarto, Soebandi.
"Draft general information on the fourth international training course on erosion sediment control engineering".
Yogyakarta:
Ministry of Public Works,
1991.
Text.