APA (7th ed.) Citation
Shapiro, B. I., & Sanders, J. (1998). Fertilizer use in semiarid West Africa: Profitability and supporting policy. Elsevier.
Chicago Style (17th ed.) Citation
Shapiro, Barry I., and J.H Sanders. Fertilizer Use in Semiarid West Africa: Profitability and Supporting Policy. Elsevier, 1998.
MLA (9th ed.) Citation
Shapiro, Barry I., and J.H Sanders. Fertilizer Use in Semiarid West Africa: Profitability and Supporting Policy. Elsevier, 1998.
Warning: These citations may not always be 100% accurate.