Fertilizer marketing /
by K. Wierer and J. C. Abbott.
- Rome : [New York : Food and Agriculture Organization of the United Nations ; sold by Unipub], 1978.
- xvi, 156 p. : ill. ; 23 cm.
- FAO marketing guide ; no. 7 FAO economic and social development series ; no. 12 .
- Food and Agriculture Organization of the United Nations. FAO marketing guide ; no. 7. Food and Agriculture Organization of the United Nations. FAO economic and social development series ; no. 12. .