APA (7th ed.) Citation

United States. Army. Corps of Engineers & Abel, C. W. (1911). Regulations for field fortifications, translation from German. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Army. Corps of Engineers and Charles W. Abel. Regulations for Field Fortifications, Translation from German. Washington: [publisher not identified], 1911.

MLA (9th ed.) Citation

United States. Army. Corps of Engineers and Charles W. Abel. Regulations for Field Fortifications, Translation from German. [publisher not identified], 1911.