"Hoppe-Seyler´s Zeitschrift für physiologische Chemie", 193.5-6 (1930): 201-268. Retrieved 19 May. 2013, from http://www.degruyter.com/view/j/bchm2.1930.193.issue-5-6/issue-files/bchm2.1930.193.issue-5-6.xml

Hoppe-Seyler´s Zeitschrift für physiologische Chemie (1930), 193(5-6), pp. 201-268. Retrieved 19 May. 2013, from http://www.degruyter.com/view/j/bchm2.1930.193.issue-5-6/issue-files/bchm2.1930.193.issue-5-6.xml

Hoppe-Seyler´s Zeitschrift für physiologische Chemie. 1930. 193(5-6): 201-268. Retrieved 19 May. 2013, from http://www.degruyter.com/view/j/bchm2.1930.193.issue-5-6/issue-files/bchm2.1930.193.issue-5-6.xml