Gaya APA
Pennwell, . (2002).
Oil & Gas Journal, Applied Geophysics, Turkmenistans oil (Week of Oct 7).
Houston:
Pennwell Books.
Gaya MLA
Pennwell, .
"Oil & Gas Journal, Applied Geophysics, Turkmenistans oil".
Week of Oct 7
Houston:
Pennwell Books,
2002.
Jurnal TP.