APA format is required. References should be listed immediately after the question that is being answered. Each question lists a minimum number of unique scholarly references; the textbook is considered one unique….
Hegland, D 2010, “From Tinkering to Manufacturing”, Assembly, Vol 53, No 7, p. 64
Tully, G 2009, “Gever Tulley teaches life lessons through tinkering”, TED Talks, (1 July), viewed 24 January 2014, http://www.youtube.com/watch?v=hvHViFc0ekw