Food preservatives - Biology bibliographies - in Harvard style

In-text: (Bateman, 2004)

Your Bibliography: Bateman, B., 2004. The effects of a double blind, placebo controlled, artificial food colourings and benzoate preservative challenge on hyperactivity in a general population sample of preschool children. Archives of Disease in Childhood, 89(6), pp.506-511.

In-text: (Brain, 2015)

Your Bibliography: Brain, M., 2015. How Food Preservation Works - HowStuffWorks. [online] HowStuffWorks. Available at: <http://science.howstuffworks.com/innovation/edible-innovations/food-preservation.htm> [Accessed 15 February 2015].

In-text: (Chaffer, 2015)

Your Bibliography: Chaffer, T., 2015. Transcript of "The toxic baby". [online] Ted.com. Available at: <https://www.ted.com/talks/tyrone_hayes_penelope_jagessar_chaffer_the_toxic_baby/transcript?language=en> [Accessed 15 February 2015].

In-text: (Lai and Chan, 1993)

Your Bibliography: Lai, C. and Chan, C., 1993. Effect of preservative on the efficacy of terbutaline nebuliser solution in atopic asthma. Thorax, 48(5), pp.566-568.

In-text: (Harmful Effects of Preservatives in Foods | LIVESTRONG.COM, 2010)

Your Bibliography: LIVESTRONG.COM. 2010. Harmful Effects of Preservatives in Foods | LIVESTRONG.COM. [online] Available at: <http://www.livestrong.com/article/325437-harmful-effects-of-preservatives-in-foods/> [Accessed 15 February 2015].