APA

Ray S., . (1987). Exemplar instructional material for pre-vocational course under work experience on repair and maintenance of household electrical appliances: instructional - cum - practical manual. New Delhi: National council of educational research and training.

Chicago

Ray Sachchidananda, . 1987. Exemplar instructional material for pre-vocational course under work experience on repair and maintenance of household electrical appliances: instructional - cum - practical manual. New Delhi: National council of educational research and training.

Harvard

Ray S., . (1987). Exemplar instructional material for pre-vocational course under work experience on repair and maintenance of household electrical appliances: instructional - cum - practical manual. New Delhi: National council of educational research and training.

MLA

Ray Sachchidananda, . Exemplar instructional material for pre-vocational course under work experience on repair and maintenance of household electrical appliances: instructional - cum - practical manual. New Delhi: National council of educational research and training. 1987.