APA (7th ed.) Citation

Hawkins, F. J. (1969). G.R.A.M.P.A. -- an automatic technique: For exciting the principle modes of vibration of complex structures. H.M.S.O..

Chicago Style (17th ed.) Citation

Hawkins, Frederick Joseph. G.R.A.M.P.A. -- an Automatic Technique: For Exciting the Principle Modes of Vibration of Complex Structures. London: H.M.S.O., 1969.

MLA (9th ed.) Citation

Hawkins, Frederick Joseph. G.R.A.M.P.A. -- an Automatic Technique: For Exciting the Principle Modes of Vibration of Complex Structures. H.M.S.O., 1969.