Reference data : (seacoast artillery and antiaircraft artillery) - USA Coast Artillery Field Manual, FM 4-155 field manual Field fortifications / prepared under direction of the chief of engineers field manual Corps of engineers : field fortifications field manual Tents and tent pitching field manual Armored engineer battalion Elementry map and aerial photography reading - USA Voorschrift, Field Manual Advanced map and aerial photograph reading - USA Voorschrift, Field Manual, 21-26 field manual Reference data / prepared under direction of the chief of engineers field manual Engineer troops field manual Operations of engineer field units field manual Corps of engineers : construction and routes of communication field manual Military police in towns and cities