Lua APA (7ú heag.)
Cret, A. (2009). The Economics of Natural Gas Storage: A European Perspective. Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-540-79407-3
Lua i Stíl Chicago (17ú heag.)
Cret, Anna. The Economics of Natural Gas Storage: A European Perspective. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. https://doi.org/10.1007/978-3-540-79407-3.
Lua MLA (9ú heag.)
Cret, Anna. The Economics of Natural Gas Storage: A European Perspective. Springer Berlin Heidelberg, 2009. https://doi.org/10.1007/978-3-540-79407-3.
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