Gaya APA
L.Bjerrum, ., Janbu, N. (1973).
Port Engineering per bruun/L.Bjerrum (^a1 ^bJilid 1).
USA:
Gulf Publshing Company.
Gaya MLA
L.Bjerrum, ., Janbu, N.
"Port Engineering per bruun/L.Bjerrum".
^a1 ^bJilid 1
USA:
Gulf Publshing Company,
1973.
Text.