- 1E. T. Westbury
Capstan and turret lathes : setting and operation
London: Percival Marshall & Co. 1944; 111 S. : Ill.
Drehmaschine - 2E. B. Watton
The A.B.C. of electronics
London: Percival Marshall & Co. 1947; 133 S. : Ill., graph. Darst.
Elektronik; Einführung - 3Percival Marshall & Co <London>
Experimental Wireless - A journal of radio research and progress : Vol. 1, No. 1 - 12 : October 1923 - September 1924
London: Percival Marshall & Co 192324; 752 S., Ill.
Rundfunktechnik; Zeitschrift - 4Charles S. Lake
The World Locomotives : A digest of the latest Locomotive practice in the Railway Countries of the World
London: Percival Marshall & Co.; 380 S. : Ill. mit graph. Tafeln
Lokomotive; Konstruktion - 5Edgar T. Westbury
Automatic lathes and screw machines : practical handbook on their mechanism, uses and operation
Maidenhead: Percival Marshall & Co.; 90 S. : Ill.
Drehmaschine