TY - BOOK AU - Mcaleese, James D. TI - METHOD FOR DETERMINING NORMAL MODES AND FREQUENCIES OF A LAUNCH VEHICLE UTILIZING ITS COMPONENT NORMAL MODES [NASA TN D-4550] PY - 1968/// CY - Washington, D.C. PB - National Aeronautics and Space Administration KW - Normal modes N1 - Bound vol. contains NASA TN D 4541-4550 ER -