North West Regional Advisory Council & Pickering, P. (1990). People in the north west: A socio-demographic profile of the north west region. North West Suburbs Regional Advisory Council.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)North West Regional Advisory Council و Paul Pickering. People in the North West: A Socio-demographic Profile of the North West Region. [Melbourne]: North West Suburbs Regional Advisory Council, 1990.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)North West Regional Advisory Council و Paul Pickering. People in the North West: A Socio-demographic Profile of the North West Region. North West Suburbs Regional Advisory Council, 1990.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.