Gaya APA
Praetorius, Steffen. (2017).
Bentonite Handbook : Lubrication for Pipe Jacking .
Berlin:
Ernst &Sohn.
Gaya Chicago
Praetorius, Steffen.
Bentonite Handbook : Lubrication for Pipe Jacking.
Berlin:
Ernst &Sohn,
2017.
Text.
Gaya MLA
Praetorius, Steffen.
Bentonite Handbook : Lubrication for Pipe Jacking.
Berlin:
Ernst &Sohn,
2017.
Text.
Gaya Turabian
Praetorius, Steffen.
Bentonite Handbook : Lubrication for Pipe Jacking.
Berlin:
Ernst &Sohn,
2017.
Print.