Benn Brothers.
Electrical and electronics trades directory 1972: / Benn Brothers - 19 ed. - London : Benn brothers ltd 1972. - xxxiv, 641p.; 28 cm.
hard cover
electric apparatus and appliances-directories
TK12 / .E44 1972
621. 3025 ben
Electrical and electronics trades directory 1972: / Benn Brothers - 19 ed. - London : Benn brothers ltd 1972. - xxxiv, 641p.; 28 cm.
hard cover
electric apparatus and appliances-directories
TK12 / .E44 1972
621. 3025 ben