"Archiv für Geschichte der Philosophie", 20.1 (1907): 1-143. Retrieved 21 May. 2013, from http://www.degruyter.com/view/j/agph.1907.20.issue-1/issue-files/agph.1907.20.issue-1.xml

Archiv für Geschichte der Philosophie (1907), 20(1), pp. 1-143. Retrieved 21 May. 2013, from http://www.degruyter.com/view/j/agph.1907.20.issue-1/issue-files/agph.1907.20.issue-1.xml

Archiv für Geschichte der Philosophie. 1907. 20(1): 1-143. Retrieved 21 May. 2013, from http://www.degruyter.com/view/j/agph.1907.20.issue-1/issue-files/agph.1907.20.issue-1.xml