TY - GEN AB - The Type 21 Frigate. June 1970. S. M. ADAMSON, B.Sc., C.ENG., M.I.MECH.E., A.M.I.MAR.E. DA - 1970 ID - 9448 JF - Journal of Naval Engineering L1 - https://library.imarest.org/record/9448/files/v19b1p01a.pdf L2 - https://library.imarest.org/record/9448/files/v19b1p01a.pdf L4 - https://library.imarest.org/record/9448/files/v19b1p01a.pdf LK - https://library.imarest.org/record/9448/files/v19b1p01a.pdf N2 - The Type 21 Frigate. June 1970. S. M. ADAMSON, B.Sc., C.ENG., M.I.MECH.E., A.M.I.MAR.E. PY - 1970 T1 - The Type 21 Frigate TI - The Type 21 Frigate UR - https://library.imarest.org/record/9448/files/v19b1p01a.pdf VL - 19 Y1 - 1970 ER -