Rogers, B., Paragraphs on printing, 1979 : port. (James Hendrickson)

WWW VIAF, Marzo 9, 2017. Hendrickson, James. http://viaf.org/viaf/67758627/

WWW WorldCat Identities, Marzo 9, 2017. Hendrickson, James. http://www.worldcat.org/identities/lccn-n80034010/

WWW LC auth., Marzo 9, 2017. Hendrickson, James. http://id.loc.gov/authorities/names/n80034010.html