APA

Lester J., Farrar D. & Gale J. (1978). Classification of defects in sewerage systems observed in closed circuit television surveys. Crowthorne: Transport and Road Research Laboratory. Suppl. report nr 377.

Chicago

Lester J, Farrar DM and Gale J. 1978. Classification of defects in sewerage systems observed in closed circuit television surveys. Crowthorne: Transport and Road Research Laboratory. Suppl. report nr 377.

Harvard

Lester J., Farrar D. and Gale J. (1978). Classification of defects in sewerage systems observed in closed circuit television surveys. Crowthorne: Transport and Road Research Laboratory. Suppl. report nr 377.

MLA

Lester J, Farrar DM and Gale J. Classification of defects in sewerage systems observed in closed circuit television surveys. Crowthorne: Transport and Road Research Laboratory. Suppl. report nr 377. 1978.