1.
SPRENT J. Nitrogen Nutrition and Plant Growth. Edited by H. S. Srivastava & R. P. Singh. Enfield, New Hampshire, USA: Science Publishers Inc. 1999. ix+347pp. ISBN 1 57808 032 0. Edinburgh J. Bot. 2000;57(1):141-150. doi:10.1017/S0960428600250099