Symposium on National Utilisation of Land Resources in Malaysia Universiti Pertanian Malaysia, Agricultural Institute of Malaysia, Malaysian Scientific Association, & Malaysian Society of Soil Science. (1973). Proceedings of the Symposium on National Utilisation of Land Resources in Malaysia, Serdang, 1973. s.n..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Symposium on National Utilisation of Land Resources in Malaysia Universiti Pertanian Malaysia, Agricultural Institute of Malaysia, Malaysian Scientific Association, و Malaysian Society of Soil Science. Proceedings of the Symposium on National Utilisation of Land Resources in Malaysia, Serdang, 1973. [S.l.: s.n., 1973.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Symposium on National Utilisation of Land Resources in Malaysia Universiti Pertanian Malaysia, et al. Proceedings of the Symposium on National Utilisation of Land Resources in Malaysia, Serdang, 1973. s.n., 1973.