HOBBS, RUSSELL DRAKE.
Classification of buildings, D buildings, page A.1.C. (Analytic system handbook on fire protection) NM: additions & revision.
HOBBS, RUSSELL DRAKE. Classification of buildings, D buildings, page A.1.C. (Analytic system handbook on fire protection) NM: additions & revision. © 14Jul41; AA371572. Western Actuarial Bureau (PWH); 17Apr69; R459923.
Western Actuarial Bureau|PWH