(1989). Proceedings: Regional workshop on sustainable agriculture - September 8-12, 1988. Philippines: International Institute of Rural Reconstruction.
استشهاد بنمط شيكاغوProceedings: Regional Workshop On Sustainable Agriculture - September 8-12, 1988. Philippines: International Institute of Rural Reconstruction, 1989.
MLA استشهادProceedings: Regional Workshop On Sustainable Agriculture - September 8-12, 1988. Philippines: International Institute of Rural Reconstruction, 1989.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.