TY  - BOOK
AU  - Metcalf,Zeno Payne
AU  - Metcalf,C.L.
TI  - A key to the principal orders and families of insects,
AV  - QL468 .M4 1928
PY  - 1928///]
CY  - [Urbana? Ill.]
PB  - The authors
KW  - Insects
N1  - Bibliography: p. [3]
ER  -