Bilaketaren emaitzak - Duff, B.

Changes in small-farm threshing technology in Thailand and the Philippines / nork Duff, B.

Fundamental particles : an introduction to quarks and leptons / nork Duff, B. G. (Brian G.)

Energy analysis, rice production systems, and rice research / nork Flinn, J. C.

Beste egile batzuk: “...Duff, B....”