Barrett, W.J.
35 mm Microfilms for drawing office - London Focal Press 1970 - 135p. , fig.; 21 cm.
--MIcrophotography.
778.315 / BAT
35 mm Microfilms for drawing office - London Focal Press 1970 - 135p. , fig.; 21 cm.
--MIcrophotography.
778.315 / BAT