Bliss, R. Spirit and Philosophy of extension work: A recorded in significant extension papers. Graduate school,Dept of Agriculture.
استشهاد بنمط شيكاغوBliss, RK. Spirit and Philosophy of Extension Work: A Recorded in Significant Extension Papers. USA: Graduate school,Dept of Agriculture.
MLA استشهادBliss, RK. Spirit and Philosophy of Extension Work: A Recorded in Significant Extension Papers. Graduate school,Dept of Agriculture.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.