Gaya APA
van der Merwe, W. J.. (1981).
Geotechnical Mapping, Aid to Environmental Control .
:
A.A. Balkema.
Gaya Chicago
van der Merwe, W. J..
Geotechnical Mapping, Aid to Environmental Control.
:
A.A. Balkema,
1981.
Computer Software.
Gaya MLA
van der Merwe, W. J..
Geotechnical Mapping, Aid to Environmental Control.
:
A.A. Balkema,
1981.
Computer Software.
Gaya Turabian
van der Merwe, W. J..
Geotechnical Mapping, Aid to Environmental Control.
:
A.A. Balkema,
1981.
Computer Software.