Penggayaan APA
LIBBY, James R., PERKINS, Norman D.. (1976).
Modern prestressed concrete highway bridge superstructures : .
San Diego:
Grantville.
Chicago Style
LIBBY, James R., PERKINS, Norman D..
Modern prestressed concrete highway bridge superstructures :.
San Diego:
Grantville,
1976.
Buku.
MLA Style
LIBBY, James R., PERKINS, Norman D..
Modern prestressed concrete highway bridge superstructures :.
San Diego:
Grantville,
1976.
Buku.
Turabian Style
LIBBY, James R., PERKINS, Norman D..
Modern prestressed concrete highway bridge superstructures :.
San Diego:
Grantville,
1976.
Buku.