3 literature references for Pyrgomantis nana Sjostedt, 1924:

Author: Sjostedt
Year: 1930
Title:
Source: Ark. Zool. 21A(32)
Author: Sjostedt
Year: 1924
Title:
Source: Ark. Zool. 16(6)
Author: Beier
Year: 1957
Title:
Source: Revue Zool. Bot. afr. 55