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Gaya APA
LNG : A Nontechnical Guide. (2007).
United States:
PennWell Corp..
Gaya Chicago
LNG : A Nontechnical Guide.
.
United States:
PennWell Corp.,
2007.
Text.
Gaya MLA
LNG : A Nontechnical Guide.
.
United States:
PennWell Corp.,
2007.
Text.
Gaya Turabian
LNG : A Nontechnical Guide.
United States:
PennWell Corp.,
2007.
Print.