"Archiv für Geschichte der Philosophie", 4.1 (1891): 1-188. Retrieved 24 May. 2013, from http://www.degruyter.com/view/j/agph.1891.4.issue-1/issue-files/agph.1891.4.issue-1.xml

Archiv für Geschichte der Philosophie (1891), 4(1), pp. 1-188. Retrieved 24 May. 2013, from http://www.degruyter.com/view/j/agph.1891.4.issue-1/issue-files/agph.1891.4.issue-1.xml

Archiv für Geschichte der Philosophie. 1891. 4(1): 1-188. Retrieved 24 May. 2013, from http://www.degruyter.com/view/j/agph.1891.4.issue-1/issue-files/agph.1891.4.issue-1.xml