Trích dẫn APA

Kearl, B. (1976). Field data collection in the social Science: Experiences inAfrica and the Middle East. Agricultural Development Council.

Trích dẫn kiểu Chicago

Kearl, Bryant. Field Data Collection in the Social Science: Experiences InAfrica and the Middle East. NewYork: Agricultural Development Council, 1976.

Trích dẫn MLA

Kearl, Bryant. Field Data Collection in the Social Science: Experiences InAfrica and the Middle East. Agricultural Development Council, 1976.

Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.