http://book.klll.cc/ebooks/subject/34794.opds?sort_order=title 2025-11-18T15:35:00Z Books about Petroleum industry and trade Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-18T15:35:00Z https://book.klll.cc/ebooks/77066.opds evolution of the oil industry Victor Ross 2025-11-18T15:35:00Z https://book.klll.cc/ebooks/61894.opds World-Struggle for Oil Pierre Paul Ernest L'Espagnol de la Tramerye