a NOVA production by Erikson & Nilsson Production in association with WGBH/Boston ... [and others] ; medical photography, Lennart Nilsson ; produced, written by Julia Cort
a co-production of Thirteen/WNET New York and BBC ; Educational Broadcasting Corporation ; written and edited by Mark Fletcher ; series producer, Bill Murphy ; executive producer, Fred Kaufman
production of Creative Media & Broadcast Center, USDA Office of Communications ; Guia de Capacitacion para Minoristas, (SNAP) ; El Departamento de Agricultura de los EE.UU
by David Attenborough ; a BBC TV production in association with Australian Broadcasting Corporation, Turner Broadcasting System Inc. ; BBC Bristol ; executive producer, Peter Jones