Book Chapter
“Multiple Cropping In Tropical Asia”. In Multiple Cropping, 11-40. Madison, WI: ASA [American Society of Agronomy]. http://www.worldcat.org/oclc/842231973.
. 1976. Journal
. 1994.
Journal Article
“Market Structure And Social Organization In A Ghanaian Marketing System”. American Ethnologist 6 (4): 682-701. http://www.jstor.org/stable/643564.
. 1979.