Institut geologii i razrabotki gor︠i︡uchikh iskopaemykh (Russia), Bars, E. A., & ︠I︡Urkevich, I. A. (1977). Gidrogeologicheskie i paleogidrogeologicheskie uslovi︠i︡a razmeshcheni︠i︡a zalezheĭ nefti i gaza. Nauka.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रInstitut geologii i razrabotki gor︠i︡uchikh iskopaemykh (Russia), Elena Antonovna Bars, और I. A. ︠I︡Urkevich. Gidrogeologicheskie I Paleogidrogeologicheskie Uslovi︠i︡a Razmeshcheni︠i︡a Zalezheĭ Nefti I Gaza. Moskva: Nauka, 1977.
एमएलए (8वां संस्करण) प्रशस्ति पत्रInstitut geologii i razrabotki gor︠i︡uchikh iskopaemykh (Russia), et al. Gidrogeologicheskie I Paleogidrogeologicheskie Uslovi︠i︡a Razmeshcheni︠i︡a Zalezheĭ Nefti I Gaza. Nauka, 1977.
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