Affinities of the North American Species of Gomphus As Revealed by the Genitalia (Odonata, Gomphidae)
by E. M. (Edmund Murton) 1877-1 Walker, Royal Ontario Museum
Writing a summary for young readers…
For young readers
Book data: Open Library
by E. M. (Edmund Murton) 1877-1 Walker, Royal Ontario Museum
Book data: Open Library