Soil Science Society of America, Bridger, G. L., Nelson, L. B., & McVickar, M. H. (1963). Fertilizer technology and usage: Proceedings of a short course sponsered by the Soil Science Society of America and held at Purdue University, Lafayette, Indiana, February 12-13, 1962. Soil Science Society of America.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Soil Science Society of America, G. L. Bridger, Lewis B. Nelson, và Malcolm Hedley McVickar. Fertilizer Technology and Usage: Proceedings of a Short Course Sponsered by the Soil Science Society of America and Held at Purdue University, Lafayette, Indiana, February 12-13, 1962. Madison: Soil Science Society of America, 1963.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)Soil Science Society of America, et al. Fertilizer Technology and Usage: Proceedings of a Short Course Sponsered by the Soil Science Society of America and Held at Purdue University, Lafayette, Indiana, February 12-13, 1962. Soil Science Society of America, 1963.