Davies, B. M. (1983). Community Health Preventive Medicine and Social Services.
Chicago-viite (17. p.)Davies, Brian Meredith. Community Health Preventive Medicine and Social Services. 1983.
MLA-viite (9. p.)Davies, Brian Meredith. Community Health Preventive Medicine and Social Services. 1983.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.