Zandstra, H. (1981). A methodology for on farm cropping systems research. IRRI.
Chicago Style (17th ed.) CitationZandstra, H.G. A Methodology for on Farm Cropping Systems Research. IRRI, 1981.
MLA (8th ed.) CitationZandstra, H.G. A Methodology for on Farm Cropping Systems Research. IRRI, 1981.
Warning: These citations may not always be 100% accurate.