Dyfyniad APA

Arias, P. R. (1997). Why upland farmers adopt conservation measures. Manila Bulletin.

Dyfyniad Arddull Chicago

Arias, Priscila R. "Why Upland Farmers Adopt Conservation Measures." Manila Bulletin 1997.

Dyfyniad MLA

Arias, Priscila R. "Why Upland Farmers Adopt Conservation Measures." Manila Bulletin, 1997.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.