Cooper, J. P., & Wareing, P. F. (1971). Potential crop production: A case study. Heinemann Educational Books.
Čikaški stil citiranjaCooper, J P., i P F. Wareing. Potential Crop Production: A Case Study. London: Heinemann Educational Books, 1971.
MLA način citiranjaCooper, J P., i P F. Wareing. Potential Crop Production: A Case Study. Heinemann Educational Books, 1971.
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