Engineering Equipment Users Association (Great Britain). (1968). Electrical variable speed drives. published for the Engineering Equipment Users Association by Constable.
Chicago-viite (17. p.)Engineering Equipment Users Association (Great Britain). Electrical Variable Speed Drives. London: published for the Engineering Equipment Users Association by Constable, 1968.
MLA-viite (8. p.)Engineering Equipment Users Association (Great Britain). Electrical Variable Speed Drives. published for the Engineering Equipment Users Association by Constable, 1968.
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