1. Don't take a chance: for confidential and helpful free family planning advice Publication: London : Dept. of Health and Social Security : Central Office of Information, 1973 Subject(s): Family Planning ServicesContraception
2. Packages of potential poison Publication: [United States : s.n.], 1973 Subject(s): Poisoning -- prevention & controlHousehold Products -- poisoning
3. Principles of biohazard and injury control for the biomedical laboratory Publication: [Bethesda, Md. : Medical Arts and Photography Branch, National Institutes of Health], 1973 Subject(s): LaboratoriesHazardous SubstancesOccupational Exposure -- prevention & controlSafety