Barker, R., Mangahas, M., & Meyers, W. H. (1972). The probable impact of the seed-fertilizer revolution on grain production and on farm labor requirements. Institute of Economic Development and Research, School of Economics, University of the Philippines.
Chicago Style (17. basım) AtıfBarker, Randolph, Mahar Mangahas, ve William H. Meyers. The Probable Impact of the Seed-fertilizer Revolution on Grain Production and on Farm Labor Requirements. [Quezon City]: Institute of Economic Development and Research, School of Economics, University of the Philippines, 1972.
MLA (9th ed.) AtıfBarker, Randolph, et al. The Probable Impact of the Seed-fertilizer Revolution on Grain Production and on Farm Labor Requirements. Institute of Economic Development and Research, School of Economics, University of the Philippines, 1972.