Cofnodi Dyfyniadau

Dyfyniad APA

(2011). Phương pháp thu thập mẫu đất và cây (Theme 3 - Clues project - 2011). Hà Nội: Nông nghiệp.

Dyfyniad Arddull Chicago

Phương Pháp Thu Thập Mẫu đất Và Cây (Theme 3 - Clues Project - 2011). Hà Nội: Nông nghiệp, 2011.

Dyfyniad MLA

Phương Pháp Thu Thập Mẫu đất Và Cây (Theme 3 - Clues Project - 2011). Hà Nội: Nông nghiệp, 2011.

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