Legal full-text edition
Defence against gas
Asphyxiating and poisonous GasesWar useChemical warfareGas PoisoningPrevention & controlRespiratory Protective Devices
Rights
Public-domain status shown for US. Open Library Read API reports full access; scan publication year 1927 is within the US public-domain cutoff
Public-domain status shown for US. Open Library Read API reports full access; scan publication year 1927 is within the US public-domain cutoff