00546cam a2200181 4500 377086210 TxAuBib 20170330120000.0 190215s2019||||||||||||||||||||||||eng|u 58895 Project Gutenberg PGUSA eng TxAuBib Ferris, J. R. Bombers' Training and Application of Same in Trench Warfare [Gutenberg] / J. R. Ferris. Project Gutenberg, 2019. Public domain in the USA. Text. http://www.gutenberg.org/ebooks/58895 TXCAN