ScienceDirect (Online service) & Oerke, E. (1994). Crop production and crop protection: Estimated losses in major food and cash crops. Elsevier.
Chicago Style (17th ed.) CitationScienceDirect (Online service) and E.-C Oerke. Crop Production and Crop Protection: Estimated Losses in Major Food and Cash Crops. Amsterdam ; New York: Elsevier, 1994.
MLA (9th ed.) CitationScienceDirect (Online service) and E.-C Oerke. Crop Production and Crop Protection: Estimated Losses in Major Food and Cash Crops. Elsevier, 1994.
Warning: These citations may not always be 100% accurate.