Symbols for seacoast defense fire-control maps, diagrams, and structures - USA Voorschrift, Technical Regulations, No. Coast defense - USA Voorschrift, Basic Field Manual, 31-10 Submarine mining - USA Voorschrift, Training Manual No. 2160-20 Coast artillery corps : Preservation and care of seacoast defense matériel - USA Voorschrift, Technical Regulations No. 1160-20
