Gaya APA

Langen, P, W, D., Lugt, L, M, V, D. (2007). Chapter 5 : goverance structures of port authorities in Netherlands (Volume 17, 109–137). Netherland: Elsevier.

Gaya MLA

Langen, Peter, W., De., Lugt, Larissa, M., Van, Der. "Chapter 5 : goverance structures of port authorities in Netherlands". Volume 17, 109–137 Netherland: Elsevier, 2007. Article.