Theoria.
APA Citation
PetzaÌll, A. Theoria. [Lund, etc.]: C.W.K. Gleerup [etc.].
MLA Citation
PetzaÌll, AÌke, 1901-. Theoria. [Lund, etc.]: C.W.K. Gleerup [etc.],
Warning: These citations may not always be complete (especially for serials).