"Hoppe-Seyler´s Zeitschrift für physiologische Chemie", 181.5-6 (1929): 221-313. Retrieved 19 May. 2013, from http://www.degruyter.com/view/j/bchm2.1929.181.issue-5-6/issue-files/bchm2.1929.181.issue-5-6.xml

Hoppe-Seyler´s Zeitschrift für physiologische Chemie (1929), 181(5-6), pp. 221-313. Retrieved 19 May. 2013, from http://www.degruyter.com/view/j/bchm2.1929.181.issue-5-6/issue-files/bchm2.1929.181.issue-5-6.xml

Hoppe-Seyler´s Zeitschrift für physiologische Chemie. 1929. 181(5-6): 221-313. Retrieved 19 May. 2013, from http://www.degruyter.com/view/j/bchm2.1929.181.issue-5-6/issue-files/bchm2.1929.181.issue-5-6.xml