Harwood, Jonathan Department Experimental Systems and Spaces of Knowledge, Max Planck Institute for the History of Science, Max Planck Society;
https://www.jstor.org/stable/40607496 (全文テキスト（全般）)
Harwood, J. (2009). Peasant friendly plant breeding and the early years of the Green Revolution in Mexico. Agricultural History, 83(3), 384-410.
