Thud and Blunder in "Knock-Off Time"
- .Yl: 1964
- Countryurt: United Kingdom
- Reanr: Animation
- Studiýa: National Coal Board Film Unit, BFI, TVC London
- Açar söz: safety, coal mining, miners, civil disobedience, collier, psa, public information film
- Direktor:
- Aktrisa:
