Citric acid cycle - Life Sciences bibliographies - in Harvard style

In-text: (The Citric Acid Cycle, 2004)

Your Bibliography: 2004. The Citric Acid Cycle. [online] Available at: <http://jpkc.gmu.cn/swhx/book/shyl/16.pdf> [Accessed 5 January 2015].

In-text: (Berg, Tymoczko and Stryer, 2011)

Your Bibliography: Berg, J., Tymoczko, J. and Stryer, L., 2011. Biochemistry. Basingstoke: Palgrave Macmillan.

In-text: (Connections of Proteins to Glucose Metabolism, 2015)

Your Bibliography: Boundless, 2015. Connections of Proteins to Glucose Metabolism. [online] Available at: <https://www.boundless.com/biology/textbooks/boundless-biology-textbook/cellular-respiration-7/connections-of-carbohydrate-protein-and-lipid-metabolic-pathways-78/connections-of-proteins-to-glucose-metabolism-367-11593/> [Accessed 5 January 2015].

In-text: (Guetta, 2007)

Your Bibliography: Guetta, D., 2007. The Citric Acid Cycle. [online] Available at: <http://www.columbia.edu/~crg2133/Files/CambridgeIA/Biology/CitricAcidCycle.pdf> [Accessed 5 January 2015].

In-text: (SparkNotes: The Citric Acid Cycle: The Reactions of the Citric Acid Cycle, n.d.)

Your Bibliography: Sparknotes.com. n.d. SparkNotes: The Citric Acid Cycle: The Reactions of the Citric Acid Cycle. [online] Available at: <http://www.sparknotes.com/biology/cellrespiration/citricacidcycle/section2.rhtml> [Accessed 5 January 2015].