Cita APA

(1998). Helping clients understand vaccination. Guelph [Ont.]: Lifelearn.

Chicago Style Citation

Helping Clients Understand Vaccination. Guelph [Ont.]: Lifelearn, 1998.

Cita MLA

Helping Clients Understand Vaccination. Guelph [Ont.]: Lifelearn, 1998.

Atenció: Aquestes cites poden no estar 100% correctes.