Garpenholt, Ö. (1999). Vaccination against haemophilus influenzae type b in Sweden: Aspects of epidemiology, economy and the process of introduction. Department of Health and Environment, Faculty of Health Sciences and Department of Clinical Microbiology, Linköpings Universitet.
Chicago-referens (17:e uppl.)Garpenholt, Örjan. Vaccination Against Haemophilus Influenzae Type B in Sweden: Aspects of Epidemiology, Economy and the Process of Introduction. Linköping: Department of Health and Environment, Faculty of Health Sciences and Department of Clinical Microbiology, Linköpings Universitet, 1999.
MLA-referens (8:e uppl.)Garpenholt, Örjan. Vaccination Against Haemophilus Influenzae Type B in Sweden: Aspects of Epidemiology, Economy and the Process of Introduction. Department of Health and Environment, Faculty of Health Sciences and Department of Clinical Microbiology, Linköpings Universitet, 1999.