Dyfyniad APA

Bernd Schubert. (1991). A logical framework for planning agricultural research programs. Philippines: IRRI.

Dyfyniad Arddull Chicago

Bernd Schubert. A Logical Framework for Planning Agricultural Research Programs. Philippines: IRRI, 1991.

Dyfyniad MLA

Bernd Schubert. A Logical Framework for Planning Agricultural Research Programs. Philippines: IRRI, 1991.

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