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Овчинников, В.П. Справочник бурового мастера [электронный ресурс]: Учебно-методическая литература / В.П. Овчинников, С.И. Грачёва, А.А. Фролова. — 1. — Вологда: Инфра-Инженерия, 2006 — 608 с. — Аспирантура. — <URL:https://znanium.com/catalog/document?id=158905>. — <URL:https://znanium.com/cover/0520/520652.jpg>.
| Period | Read | Copy | Open | Total | |
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| Last day | 0 | 0 | 0 | 0 | 0 |
| Last 30 days | 0 | 0 | 0 | 0 | 0 |
| Last 365 days | 0 | 0 | 0 | 0 | 0 |
| All time | 0 | 0 | 0 | 0 | 0 |