1. Low grade and manufactured aggregates — a review of prospects for utilisation;Collins;Resources and Conservation,1986
2. Concrete from crushed Jurassic limestone;Collins;Quarry Management and Products,1983
3. Porous aggregates in concrete: Jurassic limestones;Collins;Building Research Establishment Information Paper No IP 2/86,1986
4. Porous sandstone aggregates from N W England — a technical appraisal of prospects for use in concrete;Collins;Building Research Establishment Occasional Paper,1986
5. Concrete using porous sandstone aggregate;Collins;Quarry Management and Products,1986