''For Nuclear Families''

''This booklet is a brief guide to 3 basic kinds of nuclear shelter:
■ Simple shelters for short-term indoor or out-door use which can be built from materials already at
hand.
■ Shelters that can be assembled from do-it-yourself kits.
■ Permanent custom-built shelters built into the ground.''

Domestic Nuclear Shelters Technical Guidance (UK Government handbook, 1981)

https://archive.org/details/DomesticNuclearSheltersTechnicalGuidance