Gaya APA
Labahn, Otto. (1983).
Cement Engineers' Handbook .
Berlin:
Bauverlag GMBH.
Gaya Chicago
Labahn, Otto.
Cement Engineers' Handbook.
Berlin:
Bauverlag GMBH,
1983.
Text.
Gaya MLA
Labahn, Otto.
Cement Engineers' Handbook.
Berlin:
Bauverlag GMBH,
1983.
Text.
Gaya Turabian
Labahn, Otto.
Cement Engineers' Handbook.
Berlin:
Bauverlag GMBH,
1983.
Print.