Gaya APA
Collins, M., Mitchell, D. (1987).
Prestressed concrete basics / Michael P. Collins.; Denis Mitchell (^a1 ^bJilid 1).
Canada:
CPCI.
Gaya MLA
Collins, Michael., Mitchell, Denis.
"Prestressed concrete basics / Michael P. Collins.; Denis Mitchell".
^a1 ^bJilid 1
Canada:
CPCI,
1987.
.