Ratna, G. (2011). Field instruction in social work. Centrum Press.
Trích dẫn kiểu ChicagoRatna, Guha. Field Instruction in Social Work. Centrum Press, 2011.
MLA引文Ratna, Guha. Field Instruction in Social Work. Centrum Press, 2011.
警告：这些引文格式不一定是100％准确.