APA-ийн эшлэл(7 дахь хэвлэлт)

Petrovich, B. (2015). The increasing hub pricing and market integration in EuropeThe increasing hub pricing and market integration in Europe. Oxford Institute for Energy Studies.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Petrovich, B. The Increasing Hub Pricing and Market Integration in EuropeThe Increasing Hub Pricing and Market Integration in Europe. Oxford Institute for Energy Studies, 2015.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Petrovich, B. The Increasing Hub Pricing and Market Integration in EuropeThe Increasing Hub Pricing and Market Integration in Europe. Oxford Institute for Energy Studies, 2015.