na INLIS000000000008072 Ind 0010-1118008072 NITROGEN and phosphorus food production, waste and the environment NITROGEN and phosphorus food production, waste and the environment Edited by Keith S. Porter Michigan Ann Arbor Science 1975 xi, 372 p. : ill. ; 16 cm. xi, 372 p. : ill. ; 16 cm. ISBN 0-250-401118 664NIT Index: p. 367-372. 664 FOOD PRODUCTION NITROGEN PHOSPHORUS WASTES ENVIRONMENT 875/78